How does one draw a box around some sibling HTML elements? - html

I'd like to visually highlight a set of sibling elements that share the same attribute.
#boxed_contents span[data-boxme] {
display: inline-block;
border: 2px solid #00F;
border-radius: 5px;
}
<div id="boxed_contents">
<span>hello</span><!--
--><span>world</span><!--
--><span data-boxme>look</span><!--
--><span data-boxme>at</span><!--
--><span data-boxme>me</span>
</div>
This almost works like I want it to, but I'd like to join the boxes around each of the boxme elements, leaving just one box around all three elements. I know I can wrap the adjacent boxme elements in a wrapper div, but since this is conceptually a visual (rather than a structural) choice, I'd really like to do this without modifying the HTML.
Is there a way to do this in pure CSS? Failing that, with the addition of some straightforward Javascript?

Actually it is not possible to wrap elements in a another one by pure CSS. But we can somehow fake the effect by adding border to each adjacent element and putting an absolutely positioned pseudo-element over the middle borders.
As an aside, note that custom attributes are not valid in HTML unless they are formatted as data-*.
#boxed_contents [data-boxme] {
display: inline-block;
border: 2px solid #00F;
}
#boxed_contents [data-boxme] + [data-boxme] {
margin-left: -.25em;
padding-left: .25em;
position: relative;
}
#boxed_contents [data-boxme] + [data-boxme]:after {
content: "";
position: absolute;
top: 0; bottom: 0; left: -4px;
width: 4px;
background: white;
}
<div id="boxed_contents">
<span>hello</span>
<span>world</span>
<span data-boxme>look</span>
<span data-boxme>at</span>
<span data-boxme>me</span>
<span>not me</span>
</div>

Does this work for you?
var borderProps='2px solid #f00',borderRadius='5px',boxMeAttr='data-boxme';
var spans=document.querySelectorAll('span'),boxMeArrays=[],dummyArray=null,iterator=0;
var currSpan=null,prevSpan=null;
var i,length=spans.length,adjacentSpans=0;
for(i=0; i<length; i+=1){
prevSpan=currSpan;
currSpan=spans[i];
if(currSpan.hasAttribute(boxMeAttr)){
if(prevSpan!==null&&prevSpan.hasAttribute(boxMeAttr)){
dummyArray[dummyArray.length]=currSpan;
}else{
dummyArray=[currSpan];
boxMeArrays[iterator]=dummyArray;
iterator+=1;
}
}
}
length=boxMeArrays.length;
for(i=0; i<length; i+=1){
adjacentSpans=boxMeArrays[i].length;
for(var j=0; j<adjacentSpans; j+=1){
currSpan=boxMeArrays[i][j];
if(adjacentSpans>1){
if(j===0){
currSpan.innerText+=' ';
currSpan.style.borderLeft=currSpan.style.borderTop=currSpan.style.borderBottom=borderProps;
currSpan.style.borderTopLeftRadius=currSpan.style.borderBottomLeftRadius=borderRadius;
}else if(j===adjacentSpans-1){
currSpan.style.borderTop=currSpan.style.borderBottom=currSpan.style.borderRight=borderProps;
currSpan.style.borderTopRightRadius=currSpan.style.borderBottomRightRadius=borderRadius;
}else{
currSpan.innerText+=' ';
currSpan.style.borderTop=currSpan.style.borderBottom=borderProps;
}
}else{
currSpan.style.border=borderProps;
currSpan.style.borderRadius=borderRadius;
}
}
}
Definitely not straightforward but I think it scales well enough. And if you are OK with it, it does modify your HTML with just one bit: adding an extra space using innerText so borders could join each other nicely.
Take a look at the implementation on jsFiddle. Hope I haven't missed out any detail and really hoping this solution works for you.

Thanks to Hashem for putting me on the right track with the sibling selector (to uniquely style consecutive elements), and a pseudo-selector to add border elements.
I have had to add a line of JavaScript to ensure that there is a blank span element without the boxme attribute at the very end. By doing so, I can use the :before pseudo element on any non-boxme element following a boxme element. The main advantage to this strategy (over the one given by Hashem) is that I get to keep the rounded corners from my original CSS.
document.getElementById('boxed_contents').appendChild(document.createElement('span'));
#boxed_contents span[data-boxme] {
border: 2px solid #00F;
border-right: none;
border-radius: 5px 0 0 5px;
padding-left: 4px;
}
#boxed_contents span[data-boxme] + span[data-boxme] {
border-left: none;
border-radius: 0;
padding-left: 0;
}
#boxed_contents span[data-boxme] + span:not([data-boxme]):before {
content: "";
border: 2px solid #00F;
border-left: none;
border-radius: 0 5px 5px 0;
padding-right: 4px;
}
<div id="boxed_contents">
<span>hello</span><!--
--><span>world</span><!--
--><span data-boxme>look</span><!--
--><span data-boxme>at</span><!--
--><span data-boxme>me</span>
</div>
I'm not sure how cross-platform this solution is, but it seems to work well on my target platform of Chrome.

I have edited your code to work how you describe you want it to work, the .boxme tag in the class element applies the style whereby the boxme class is inside the #box_contents tag.
#boxed_contents.boxme {
display: inline-block;
}
#boxed_contents.borderBox {
border: 2px solid #00F;
border-radius: 5px;
}
:)
<div id="boxed_contents">
<span>hello</span>
<span>world</span>
<div class='borderBox'>
<span class='boxme'>look</span>
<span class='boxme'>at</span>
<span class='boxme'>me</span>
</div>
</div>
If you know the layout of the boxme structure, then you can use it to force by adding an extra DIV around the chosen elements.

Related

How put some horizontal offset to an element bottom border with CSS?

I use bottom-border on some a element, and I want to add some horizontal offset to the border.
What I have now:
Link very cool name
-------------------
What I want:
Link very cool name
----------------
How can I archive this? Only using an a element.
A pseudo-element is ideal here which can be styled in any fashion you want, color, width & height...even position below the link text.
a {
position: relative;
text-decoration: none;
}
a::after {
content: "";
position: absolute;
top: 100%;
right: 0;
width: 75%;
height: 2px;
background: orange;
}
Long stretch of text
You can try this:
a{
text-decoration: none;
display:inline-block;
}
a:after{
content: "";
border-bottom: dotted 2px red;
width: 70%;
float: right;
padding-top: 5px;
}
https://jsfiddle.net/9xc0x58c/1/
You could use a pseudo element ie :after element for this and abs pos it, 1px high background colour and width of you chosen link length etc.
Would that be the required result? Not sure the requirement as to why you would want this but it should achieve the required result.
you can use span
HTML
Link <span class="un">very cool name</span>
CSS
.un{
border-bottom: dotted 2px red;
}

CSS: Simply apply a style to the first generation of children

I am trying to apply a css style to the first children of an element. So say I have a div, with two divs, which are the children, and within each child is their own child, which are the grandchildren.
This JSFiddle, I hope is what I've done: http://jsfiddle.net/o8xhba9u/
#parent {
border: 1px solid;
padding: 10px;
}
#child-one {
text-indent: 5px;
padding: 10px;
}
#child-two {
text-indent: 5px;
padding: 10px;
}
#parent * {
border-top: 1px solid red;
}
My goal is to only have the children (child-one and child-two) to only be the ones with the red border-top. The paragraph elements (grandchildren) shouldn't have the red outline. I am trying to accomplish this dynamically, as if I were to have different elements, and add new ones later and have the effect applied without having to edit the css. How can I accomplish that?
You are looking for the direct child combinator, >.
Example Here
#parent > * {
border-top: 1px solid red;
}

use span to create a separator

I create an empty span with css border: 1px solid #333 but didn't see any working separator. I think there must be something inside the span? how to create a border with empty tag? a hr tag is too ugly.
You must give it a size, and display it as a block. Try this.
span.separator {
border-top: 1px solid #333;
width: 100%;
height: 1px;
display: block;
}
JSFiddle
hr tag is not ugly if you use border: 0; and than use border-top: 1px solid #000;, the 3d style of hr is just applied by browser, you can alter it the way I suggested.
hr {
border: 0;
border-top: 1px solid #000;
margin: 10px auto; /* For vertical spacing */
}
Demo
I would suggest you to use <hr /> as semantic goes, it will give a meaning to your page and will also save you few characters in the source.
Secondly about the span tag, it's an inline tag, to span it 100% you need to make it display: block;.
span.separator {
border-top: 1px solid #000;
display: block;
margin: 10px auto; /* For vertical spacing */
}
For more information on inline span you can refer my answer here.
A span is not a block element, in order to get what you want, you would have to give it a height and set it as display:block or inline-block.
If you want the border to be only on one side you can use border-right or border-left;
test <span style="display:inline-block;height:13px;border:1px solid black;"></span> test
Here is an example
http://jsfiddle.net/Cm5fK/

How to pass parameters to css classes

I want to know is it possible to add some flexibility to css via this:
<div class='round5'></div>
where .round is a class with round corners and '5' determines the amount of radius. Is it possible? I have seen some where, but I don't know how the implementation takes place.
For anyone stumbling across this in 2018, whilst not fully supported CSS variables now give you the ability to pass a variable directly into your class.
<div class="round" style="--radius: 100%;"></div>
<style>
.round {
display: block;
height: 40px;
width: 40px;
border: 1px solid #BADA55;
border-radius: var(--radius);
}
</style>
You can also define root variables and pass them in as well
<div class="round" style="--radius: var(--rad-50);"></div>
<style>
:root {
--rad-0: 0%;
--rad-50: 50%;
--rad-100: 100%;
}
.round {
display: block;
height: 40px;
width: 40px;
border: 1px solid #BADA55;
border-radius: var(--radius);
}
</style>
This is also scoped to the element as well. If you set the --radius in one element is wont effect another element. Pretty jazzy right!
You can't define the border radius separate from its value because it's all one property. There's no way to tell an element to have rounded corners "in general" without also specifying how much to round them by.
However, you can do something kind of similar with multiple classes and different properties:
HTML:
<div class="rounded blue"></div>
<div class="rounded green"></div>
CSS:
.rounded {
border-radius: 5px;
}
.blue {
background: blue;
}
.green {
background: green;
}
The .rounded class adds the border radius and the .blue and .green classes add the background color.
(I like to name and order the classes such that they read logically, like <div class="large box"></div>, etc.).
Here is an answer that I came up with that requires a small amount of jQuery, and a small knowledge of Regex.
$(function() {
var number = $("div").attr("class").match(/\d+$/);
$("div").css({
"width": "100px",
"height": "100px",
"background-color": "green",
"border-radius": number + "px"
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class='round54'>hello</div>
The .match() function uses Regex. Regex is used to detect parts of strings. The \d detects any digits. The + matches the previous selector 1 or more times. In other words, the number can be a multi digit number. And the $ means it has to be at the end.
So then the jQuery uses that in the border-radius property later. All you have to do is append px, and you are good to go.
Fiddle
You could do something similar but not exactly the way you've put it.
CSS
.radius{
border-radius: 10px;
border: 1px solid red;
}
.r5{
border-radius:5px;
}
HTML
<div class="radius">Hello World</div>
<br/>
<div class="radius r5">Hello World</div>
Working Example
In the example above the red border will be retained but the border-radius will change.
Note that you don't start class names with numbers, hence r5 rather than 5
You can use multiclassing on the element. Eg.:
HTML:
<div class="round">Box without border radius</div>
<div class="round rounded-5">Box with 5px border radius</div>
<div class="round rounded-10">Box with 10px border radius</div>
CSS:
.round {
border: 1px solid #000;
width: 100px;
height: 100px;
}
.round.rounded-5 {
border-radius: 5px;
}
.round.rounded-10 {
border-radius: 10px;
}
you can do this. but you have to create the css in the html document(not linked, but between the <style> tag). you can use php or javascript to make a loop. for example try this:
<style>
<?php
$round = 5;
for ($round = 50; $round <= 150; $round+=25){
echo "#round$round{
height: 300px;
width: 300px;
background: #f00;
border-radius : ".$round."px;
margin: 2px;
}
";
}
?>
</style>
<?php
for ($round=50;$round<=150; $round+=25){
echo "<div id='round$round'>
</div>
";
}
?>
hope this helps! :D
Maybe what you want is like this
CSS
.round {
border-radius: 4px; /*it's default when you juse using .round*/
}
.round.five {
border-radius: 5px;
}
.round.ten {
border-radius: 10px;
}
HTML
<div class="round five">something</div>
You can do what you are saying but you would have to reserve the keyword "round" for only this purpose. If you look at the following.
div[class*="round"] {
background-color: green;
color: white;
padding: 10px;
}
And then targeting specific variants of it using...
div[class="round5"] {
border-radius: 5px;
}
The first block of code selects all class names which contain the word round, this can be both a good thing and a bad thing.

Outline radius?

Is there any way of getting rounded corners on the outline of a div element, similar to border-radius?
I had an input field with rounded border and wanted to change colour of focus outline. I couldn't tame the horrid square outline to the input control.
So instead, I used box-shadow. I actually preferred the smooth look of the shadow, but the shadow can be hardened to simulate a rounded outline:
input, input:focus {
border: none;
border-radius: 2pt;
box-shadow: 0 0 0 1pt grey;
outline: none;
transition: .1s;
}
/* Smooth outline with box-shadow: */
.text1:focus {
box-shadow: 0 0 3pt 2pt cornflowerblue;
}
/* Hard "outline" with box-shadow: */
.text2:focus {
box-shadow: 0 0 0 2pt red;
}
<input class="text1">
<br>
<br>
<input type=text class="text2">
I usually accomplish this using the :after pseudo-element:
of course it depends on usage, this method allows control over individual borders, rather than using the hard shadow method.
you could also set -1px offsets and use a background linear gradient (no border) for a different effect once again.
body {
margin: 20px;
}
a {
background: #999;
padding: 10px 20px;
border-radius: 5px;
text-decoration: none;
color: #fff;
position: relative;
border: 2px solid #000;
}
a:after {
content: '';
display: block;
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
border-radius: 5px;
border: 2px solid #ccc;
}
Button
Similar to Lea Hayes above, but here's how I did it:
div {
background: #999;
height: 100px;
width: 200px;
border: #999 solid 1px;
border-radius: 10px;
margin: 15px;
box-shadow: 0px 0px 0px 1px #fff inset;
}
<div></div>
No nesting of DIVs or jQuery necessary, Altho for brevity I have left out the -moz and -webkit variants of some of the CSS. You can see the result above
Use this one:
box-shadow: 0px 0px 0px 1px red;
I wanted some nice focus accessibility for dropdown menus in a Bootstrap navbar, and was pretty happy with this:
a.dropdown-toggle:focus {
display: inline-block;
box-shadow: 0 0 0 2px #88b8ff;
border-radius: 2px;
}
Visit Stackoverflow
We may see our wishes soonish by setting outline-style: auto It's on WebKits radar: http://trac.webkit.org/changeset/198062/webkit
See ya in 2030.
You're looking for something like this, I think.
div {
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;
border: 1px solid black;
background-color: #CCC;
height: 100px;
width: 160px;
}
Edit
There is a Firefox-only -moz-outline-radius properly, but that won't work on IE/Chrome/Safari/Opera/etc. So, it looks like the most cross-browser-compatible way* to get a curved line around a border is to use a wrapper div:
div.inner {
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;
border: 1px solid black;
background-color: #CCC;
height: 100px;
width: 160px;
}
div.outer {
display: inline-block;
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;
border: 1px solid red;
}
<div class="outer">
<div class="inner"></div>
</div>
*aside from using images
Firefox 88+: border-radius
From April 2021 you will be able to use a simple CSS for Firefox:
.actual {
outline: solid red;
border-radius: 10px;
}
.expected {
border: solid red;
border-radius: 10px;
}
In Firefox 88+,
<span class="actual">this outline</span>
should look like
<span class="expected">this border</span>
Current behaviour in Firefox 86.0:
Webkit: no solution
Using outline-style: auto will tell the «user agent to render a custom outline style»: see [MDN](https://developer.mozilla.org/en-US/docs/Web/CSS/outline-style(.
Webkit-based browsers will then draw the outline over the border, when you use outline-style: auto. It's difficult to style it properly.
.actual {
outline: auto red;
border-radius: 10px;
}
.expected {
border: solid red;
border-radius: 10px;
}
In WebKit browsers (Chrome, Edge),
<span class="actual">this outline</span>
should look close to
<span class="expected">this border</span>
Current behaviour in Chrome 89.0:
More information
From Firefox 88 (to be released April 20 2021), outline will follow the shape of border-radius.
The current -moz-outline-radius will become redundant and will be removed.
See MDN's entry about -moz-outline-radius:
From Firefox 88 onwards, the standard outline property will follow the shape of border-radius, making -moz-outline-radius properties redundant. As such, this property will be removed.
(Feb 2023)
As far as I know, the Outline radius is only supported by Firefox and Firefox for android.
-moz-outline-radius: 1em;
I just found a great solution for this, and after looking at all the responses so far, I haven't seen it posted yet. So, here's what I did:
I created a CSS Rule for the class and used a pseudo-class of :focus for that rule. I set outline: none to get rid of that default light-blue non-border-radius-able 'outline' that Chrome uses by default. Then, in that same :focus pseudo-class, where that outline no longer exists, I added my radius and border properties. Leading to the following
outline: none;
border-radius: 5px;
border: 2px solid maroon;
to have a maroon-colored outline with a border radius that now appears when the element is tab-selected by the user.
If you want to get an embossed look you could do something like the following:
.embossed {
background: #e5e5e5;
height: 100px;
width: 200px;
border: #FFFFFF solid 1px;
outline: #d0d0d0 solid 1px;
margin: 15px;
}
.border-radius {
border-radius: 20px 20px 20px 20px;
-webkit-border-radius: 20px;
-moz-border-radius: 20px;
-khtml-border-radius: 20px;
}
.outline-radius {
-moz-outline-radius: 21px;
}
<div class="embossed"></div>
<div class="embossed border-radius"></div>
<div class="embossed border-radius outline-radius">-MOZ ONLY</div>
I have not found a work around to have this work in other browsers.
EDIT: The only other way you can do this is to use box-shadow, but then this wont work if you already have a box shadow on that element.
Chrome 94.0+
I tested it in chrome 94.0 and it seems that the outline property honors the border-radius now.
.outline {
outline: 2px solid red;
}
.border {
border: 2px solid red;
}
.outline-10 {
border-radius: 10px;
}
.border-2 {
border-radius: 2px;
}
.outline-2 {
border-radius: 2px;
}
.border-10 {
border-radius: 10px;
}
.outline-50 {
border-radius: 50%;
}
.border-50 {
border-radius: 50%;
}
.circle {
display: inline-block;
width:50px;
height: 50px;
}
<strong>Test this in chrome 94.0+</strong>
<br/><br/>
border-radius: 2px
<span class="outline outline-2">outline</span>
<span class="border border-2">border</span>
<br/><br/>
border-radius: 10px
<span class="outline outline-10">outline</span>
<span class="border border-10">border</span>
<br/><br/>
border-radius: 50%
<span class="outline outline-50">outline</span>
<span class="border border-50">border</span>
<span class="outline circle outline-50">outline</span>
<span class="border circle border-50">border</span>
As others have said, only firefox supports this. Here is a work around that does the same thing, and even works with dashed outlines.
.has-outline {
display: inline-block;
background: #51ab9f;
border-radius: 10px;
padding: 5px;
position: relative;
}
.has-outline:after {
border-radius: 10px;
padding: 5px;
border: 2px dashed #9dd5cf;
position: absolute;
content: '';
top: -2px;
left: -2px;
bottom: -2px;
right: -2px;
}
<div class="has-outline">
I can haz outline
</div>
No. Borders sit on the outside of the element and on the inside of the box-model margin area. Outlines sit on the inside of the element and the box-model padding area ignores it. It isn't intended for aesthetics. It's just to show the designer the outlines of the elements. In the early stages of developing an html document for example, a developer might need to quickly discern if they have put all of the skeletal divs in the correct place. Later on they may need to check if various buttons and forms are the correct number of pixels apart from each other.
Borders are aesthetic in nature. Unlike outlines they are actually apart of the box-model, which means they do not overlap text set to margin: 0; and each side of the border can be styled individually.
If you're trying to apply a corner radius to outline I assume you are using it the way most people use border. So if you don't mind me asking, what property of outline makes it desirable over border?
COMBINING BOX SHADOW AND OUTLINE.
A slight twist on Lea Hayes answer
I found
input[type=text]:focus {
box-shadow: 0 0 0 1pt red;
outline-width: 1px;
outline-color: red;
}
gets a really nice clean finish. No jumping in size which you get when using border-radius
There is the solution if you need only outline without border. It's not mine. I got if from Bootstrap css file. If you specify outline: 1px auto certain_color, you'll get thin outer line around div of certain color. In this case the specified width has no matter, even if you specify 10 px width, anyway it will be thin line. The key word in mentioned rule is "auto".
If you need outline with rounded corners and certain width, you may add css rule on border with needed width and same color. It makes outline thicker.
I was making custom radio buttons and the best customisable way i've found is using pseudo elements like this: Codepen
/*CSS is compiled from SCSS*/
.product-colors {
margin-bottom: 1em;
display: flex;
align-items: center;
}
.product-colors label {
position: relative;
width: 2.1em;
height: 2.1em;
margin-right: 0.8em;
cursor: pointer;
}
.product-colors label:before {
opacity: 0;
width: inherit;
height: inherit;
padding: 2px;
border: 2px solid red;
border-radius: 0.2em;
content: "";
position: absolute;
z-index: 1;
background: transparent;
top: -4px;
left: -4px;
}
.product-colors input {
position: absolute;
opacity: 0;
width: 0;
height: 0;
}
.product-colors input:checked + label:before, .product-colors input:focus + label:before {
opacity: 1;
}
<div class="product-colors">
<input type="radio" name="cs" id="cs1" value="black">
<label for="cs1" style="background:black"></label>
<input type="radio" name="cs" id="cs2" value="green">
<label for="cs2" style="background:green"></label>
<input type="radio" name="cs" id="cs3" value="blue">
<label for="cs3" style="background:blue"></label>
<input type="radio" name="cs" id="cs4" value="yellow">
<label for="cs4" style="background:yellow"></label>
</div>
clip-path: circle(100px at center);
This will actually make clickable only circle, while border-radius still makes a square, but looks as circle.
The simple answer to the basic question is no. The only cross-browser option is to create a hack that accomplishes what you want. This approach does carry with it certain potential issues when it comes to styling pre-existing content, but it provides for more customization of the outline (offset, width, line style) than many of the other solutions.
On a basic level, consider the following static example (run the snippent for demo):
.outline {
border: 2px dotted transparent;
border-radius: 5px;
display: inline-block;
padding: 2px;
margin: -4px;
}
/* :focus-within does not work in Edge or IE */
.outline:focus-within, .outline.edge {
border-color: blue;
}
br {
margin-bottom: 0.75rem;
}
<h3>Javascript-Free Demo</h3>
<div class="outline edge"><input type="text" placeholder="I always have an outline"/></div><br><div class="outline"><input type="text" placeholder="I have an outline when focused"/></div> *<i>Doesn't work in Edge or IE</i><br><input type="text" placeholder="I have never have an outline" />
<p>Note that the outline does not increase the spacing between the outlined input and other elements around it. The margin (-4px) compensates for the space that the outlines padding (-2px) and width (2px) take up, a total of 4px.</p>
Now, on a more advanced level, it would be possible to use JavaScript to bootstrap elements of a given type or class so that they are wrapped inside a div that simulates an outline on page load. Furthermore, event bindings could be established to show or hide the outline on user interactions like this (run the snippet below or open in JSFiddle):
h3 {
margin: 0;
}
div {
box-sizing: border-box;
}
.flex {
display: flex;
}
.clickable {
cursor: pointer;
}
.box {
background: red;
border: 1px solid black;
border-radius: 10px;
height: 5rem;
display: flex;
align-items: center;
text-align: center;
color: white;
font-weight: bold;
padding: 0.5rem;
margin: 1rem;
}
<h3>Javascript-Enabled Demo</h3>
<div class="flex">
<div class="box outline-me">I'm outlined because I contain<br>the "outline-me" class</div>
<div class="box clickable">Click me to toggle outline</div>
</div>
<hr>
<input type="text" placeholder="I'm outlined when focused" />
<script>
// Called on an element to wrap with an outline and passed a styleObject
// the styleObject can contain the following outline properties:
// style, width, color, offset, radius, bottomLeftRadius,
// bottomRightRadius, topLeftRadius, topRightRadius
// It then creates a new div with the properties specified and
// moves the calling element into the div
// The newly created wrapper div receives the class "simulated-outline"
Element.prototype.addOutline = function (styleObject, hideOutline = true) {
var element = this;
// create a div for simulating an outline
var outline = document.createElement('div');
// initialize css formatting
var css = 'display:inline-block;';
// transfer any element margin to the outline div
var margins = ['marginTop', 'marginBottom', 'marginLeft', 'marginRight'];
var marginPropertyNames = {
marginTop: 'margin-top',
marginBottom: 'margin-bottom',
marginLeft: 'margin-left',
marginRight: 'margin-right'
}
var outlineWidth = Number.parseInt(styleObject.width);
var outlineOffset = Number.parseInt(styleObject.offset);
for (var i = 0; i < margins.length; ++i) {
var computedMargin = Number.parseInt(getComputedStyle(element)[margins[i]]);
var margin = computedMargin - outlineWidth - outlineOffset;
css += marginPropertyNames[margins[i]] + ":" + margin + "px;";
}
element.style.cssText += 'margin:0px !important;';
// compute css border style for the outline div
var keys = Object.keys(styleObject);
for (var i = 0; i < keys.length; ++i) {
var key = keys[i];
var value = styleObject[key];
switch (key) {
case 'style':
var property = 'border-style';
break;
case 'width':
var property = 'border-width';
break;
case 'color':
var property = 'border-color';
break;
case 'offset':
var property = 'padding';
break;
case 'radius':
var property = 'border-radius';
break;
case 'bottomLeftRadius':
var property = 'border-bottom-left-radius';
break;
case 'bottomRightRadius':
var property = 'border-bottom-right-radius';
break;
case 'topLeftRadius':
var property = 'border-top-left-radius-style';
break;
case 'topRightRadius':
var property = 'border-top-right-radius';
break;
}
css += property + ":" + value + ';';
}
// apply the computed css to the outline div
outline.style.cssText = css;
// add a class in case we want to do something with elements
// receiving a simulated outline
outline.classList.add('simulated-outline');
// place the element inside the outline div
var parent = element.parentElement;
parent.insertBefore(outline, element);
outline.appendChild(element);
// determine whether outline should be hidden by default or not
if (hideOutline) element.hideOutline();
}
Element.prototype.showOutline = function () {
var element = this;
// get a reference to the outline element that wraps this element
var outline = element.getOutline();
// show the outline if one exists
if (outline) outline.classList.remove('hide-outline');
}
Element.prototype.hideOutline = function () {
var element = this;
// get a reference to the outline element that wraps this element
var outline = element.getOutline();
// hide the outline if one exists
if (outline) outline.classList.add('hide-outline');
}
// Determines if this element has an outline. If it does, it returns the outline
// element. If it doesn't have one, return null.
Element.prototype.getOutline = function() {
var element = this;
var parent = element.parentElement;
return (parent.classList.contains('simulated-outline')) ? parent : null;
}
// Determines the visiblity status of the outline, returning true if the outline is
// visible and false if it is not. If the element has no outline, null is returned.
Element.prototype.outlineStatus = function() {
var element = this;
var outline = element.getOutline();
if (outline === null) {
return null;
} else {
return !outline.classList.contains('hide-outline');
}
}
// this embeds a style element in the document head for handling outline visibility
var embeddedStyle = document.querySelector('#outline-styles');
if (!embeddedStyle) {
var style = document.createElement('style');
style.innerText = `
.simulated-outline.hide-outline {
border-color: transparent !important;
}
`;
document.head.append(style);
}
/*########################## example usage ##########################*/
// add outline to all elements with "outline-me" class
var outlineMeStyle = {
style: 'dashed',
width: '3px',
color: 'blue',
offset: '2px',
radius: '5px'
};
document.querySelectorAll('.outline-me').forEach((element)=>{
element.addOutline(outlineMeStyle, false);
});
// make clickable divs get outlines
var outlineStyle = {
style: 'double',
width: '4px',
offset: '3px',
color: 'red',
radius: '10px'
};
document.querySelectorAll('.clickable').forEach((element)=>{
element.addOutline(outlineStyle);
element.addEventListener('click', (evt)=>{
var element = evt.target;
(element.outlineStatus()) ? element.hideOutline() : element.showOutline();
});
});
// configure inputs to only have outline on focus
document.querySelectorAll('input').forEach((input)=>{
var outlineStyle = {
width: '2px',
offset: '2px',
color: 'black',
style: 'dotted',
radius: '10px'
}
input.addOutline(outlineStyle);
input.addEventListener('focus', (evt)=>{
var input = evt.target;
input.showOutline();
});
input.addEventListener('blur', (evt)=>{
var input = evt.target;
input.hideOutline();
});
});
</script>
In closing, let me reiterate, that implementing this approach may require more styling than what I have included in my demos, especially if you have already styled the element you want outlined.
outline-style: auto has had full browser support for ages now.
Shorthand is:
outline: auto blue;
This let's you set a custom color, but not a custom thickness, unfortunately (although I think the browser default thickness is a good default).
You can also set a custom outline-offset when using outline-style: auto.
outline: auto blue;
outline-offset: 0px;
you can use box-shadow instead of outline like this
box-shadow: 0 0 1px #000000;
border-radius: 50px;
outline: none;
Try using padding and a background color for the border, then a border for the outline:
.round_outline {
padding: 8px;
background-color: white;
border-radius: 50%;
border: 1px solid black;
}
Worked in my case.
I just set outline transparent.
input[type=text] {
outline: rgba(0, 0, 0, 0);
border-radius: 10px;
}
input[type=text]:focus {
border-color: #0079ff;
}
I like this way.
.circle:before {
content: "";
width: 14px;
height: 14px;
border: 3px solid #fff;
background-color: #ced4da;
border-radius: 7px;
display: inline-block;
margin-bottom: -2px;
margin-right: 7px;
box-shadow: 0px 0px 0px 1px #ced4da;
}
It will create gray circle with wit border around it and again 1px around border!