I wanted to implement a syntax highlighting feature in my app.
Please ignore the possibility of contenteditable.
I'd like to implement the feature via:
textarea with invisible font and background, floating over a pre with appropriate colors applied to the text. The cursor and selection background should render in the textarea, but the highlighted text should show through from the underlying pre.
Now, it seems there is something special about textarea (or my CSS ignorance) that makes this not render correctly (e.g. making background/color of a textarea also makes the cursor invisible).
Is there a way to achieve my goal?
I don't need general help. Attached is an image of my editor in action. Highlighting and selection are visible, cursor is not. :(.
You could use thee CSS-property caret-color for the textarea. This will set the color specifically for the cursor/ caret and ignore the color of the background/ text for the textarea. This does unfortunately not work in IE/ Edge (It is however supported by the remaining major browsers).
I clearly did not get what you meant before and pointed you toward a code editor like ace.
I see now I just created the example of what you asked above. You can hide the text in the textarea by doing something like this color: rgba(0,0,0,0); But that will also hide the cursor.
*{
box-sizing: border-box;
}
div{
position: relative;
}
pre{
background: black;
color: white;
font-size: 14px;
}
textarea {
font-size: 14px;
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: none;
border: none;
padding: 0;
color: rgba(0,0,0,0);
}
<div>
<pre>This is my pre
-
-
</pre>
<textarea>This is my pre</textarea>
</div>
Related
I'm trying to implement an html control similar to the how search works in google chrome. I'm aware that in chrome it might not be built in html, but I'm trying to achieve the same functionality.
The way the search works is that adjacent to the text entered into the input, there's an extra text field that present the current index of a total number. It's also worth while noticing that the highlighted border is of the entire input (including the entered text and the index and sub total count). Also, when entering a long text, the index and sub total indicator (e.g. 0 of 10) doesn't get overridden, and the text itself scrolls.
Does anyone have any simple approach for implementing this feature set?
A simple aproach would be adding padding to the input, and positioning the text you want to keep over it. Rewriting the value of the input with pogramming.
HTML
<div class="form-text">
<input type=text placeholder="0 of 0" id="youridhere"/>
<label for="youridhere" class="static-value">Get this label to appear</label>
</div>
CSS
.form-text{
position:relative;
}
input{
padding:5px 5px 5px 150px;
}
.static-value{
position:absolute;
left:10px;
font-size:0.85em;
top:9px;
}
Pen of it working
This is the simplest solution, but you can find other better results and best practices using javascript. Wich I think would be something like detecting the pressed key and adding it the to string programatically instead of the standart browser behaviour.
I like this CSS based solution cause you can customize the fixed text, and don't need to change the standart behaviour of input fields.
-------- Edit --------
Actually, the best solution would be with the label element, with the for attribute, link it to the field. So when clicked it leads the user to the field. Edited.
I've made the foundation of it with only CSS, see the demo follows.
jsfiddle
* {
box-sizing: border-box;
}
div {
position: relative;
width: 10em;
}
input {
width: 100%;
padding: 4px;
border: 1px solid;
padding-right: 52px;
}
span {
display: block;
border-left: 1px solid;
width: 50px;
text-align: center;
position: absolute;
right: 0;
top: 2px;
}
<div><input type="text"><span>etc</span></div>
I have an annoying issue with the html layout of a form. I cannot really change the general setup, since it is part of a huge framework. But I have to "move" a button to a more suitable location. I am close, but not happy with the solution so far. Maybe you can give me some idea in this. Here is a dramatically simplified version to demonstrate my approach:
I have two container divs, top and bottom.
The top container shows a button on the left side. That button is fixed, but can have a different width due to the translation of its label.
The bottom container holds lots of stuff. Amongst that a second button at its top which works fine, but looks wrong. I want to optically move it into the top container, since there is a logical connection to the button in there. Sure, really placing it in there would be the correct solution, but I currently cannot do that. Instead I use a fixed position which works fine, except for the horizontal placement. I have to decide how far pushed from the left to place the button, so that it certainly does not overlap the first button in the container. I obviously have to consider all translations, the result works, but depending on the first buttons label I have an annoying horizontal gap between the two buttons.
I tried to use a pseudo element (::before) on the second button to help with the layout. Since when rendering the view I obviously have the translated label of the first button I can copy that into some property of the second button and use that property in my css to fill a before pseudo element of the second button which has exactly the same length as the first button. That is what is shown in the code example posted below.
What I completely fail to do is to place that pseudo element such that is it left in the top container (so exactly below the first button). The idea is to indirectly place the second button that way. Looks like this is not possible, obviously. But since I am a bloody beginner in markup and styling I thought it might be worth asking here...
Below is some drastically stripped down code to demonstrate my approach.
I create a jsfiddle for you to play around with. Here is the code:
HTML:
<div id="top-container">
<button>multilingual button text</button>
</div>
<div id="bottom-container">
<h2>
Some title opening the bottom container
<span class="into-top-container">
<button id="place-me" reference-text="multilingual button text">button to be placed</button>
</span>
</h2>
<p>Some content</p>
<p>Some content</p>
<p>Some content</p>
</div>
CSS:
body {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
div {
margin: 0;
padding: 5px;
}
button {
margin: 0;
padding: 5px;
white-space: nowrap;
}
div#top-container {
width: 100%;
border: 1px solid green;
}
div#bottom-container {
width: 100%;
border: 1px solid blue;
}
#place-me {
position: fixed;
top: 0;
left: 400px;
margin: 5px;
background: yellow;
}
#place-me::before {
z-index: 0;
/*visibility: hidden;*/
position: absolute;
content: attr(reference-text);
margin: 0 5px;
padding: 0;
background: gold;
right: 100%;
}
Notes:
that in the above code the second button is placed with left: 400px;. That is more or less what I want to change. But obviously left: 0 is not correct...
the visibility css rule for the pseudo element is currently commented out for demonstration purpose
keep in mind that the second button is *not* contained inside the top container, but actually logically below the title of the bottom container. The goal is to move it optically up into the top container which already is where close to what I want. Except for the horizontal alignment...
Upon request here is a screenshot:
It is taken from the fiddle I posted above. I added the red ellipse which shows what element pair I want to move and the left pointing arrow indicating where I want to move that too. I want to move it exactly that far, that the two tests "multilingual button text" are exactly placed on top of each other, but without specifying an explicit left placement obviously. That is why the pseudo element exists: as a dummy placeholder. I would then hide that pseudo element and have the second button placed exactly right of the first button, regardless of how long the translated text in there is.
So the final result should like like that:
OK, I invested some more time, since this issue popped up again after a regression in our code and I found, as often after allowing some time to pass, a logical and relatively clean solution:
I use the same stripped down code to for demonstration purposes.
The jsfiddle is based on the one provided in the question itself.
HTML: no real change, except for the reference-text having moved from button to container, for the why see below:
CSS:
* {
font-size: 12px;
font-weight: normal;
font-family: Arial;
}
body {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
font-size: 12px;
font-weight: normal;
}
span,
div {
margin: 0;
padding: 5px;
}
button {
margin: 0;
padding: 5px;
white-space: nowrap;
}
div#top-container {
width: 100%;
border: 1px solid green;
}
div#bottom-container {
width: 100%;
border: 1px solid blue;
}
span.into-top-container {
position: fixed;
top: 0;
left: 0;
pointer-events: none;
border: 1px solid transparent;
}
span.into-top-container::before {
visibility: hidden;
content: attr(reference-text);
position: relative;
margin-right: 5px;
padding: 5px;
border: 2px solid;
background: gold;
}
#place-me {
background: yellow;
pointer-events: all;
}
The basic change in strategy: it is the container holding the button to be placed that has to be positioned in a fixed manner, not that button itself (so the <span class="into-top-container">)! That allows to use the pseudo before element, now also anchored to that container, not the button, to take the space as required without actually getting part of the button itself.
Since that container is now place over the original multilingual button that one is not clickable any more. That issue is fixed by a css pointer-events set to none for the container and set to all for the placed button again. That makes the container itself simply ignore all events (clicks) and have them passed to the original button beneath.
I had to make sure that the font used inside the pseudo element is style exactly like the original multilingual button. That actually makes sense, since the font styling defines the actual width used by that button, so the actual width used by the pseudo element should be defined in exactly the same manner. In the example above I forced that by simply setting all elements font style rules to some fixed values (the initial * {...} in the CSS code). That can obviously also be done right inside the css rules for the pseudo element itself. I chose the more simple and brute variant here to keep the code clean.
Just like the Title says, "How to use text as a background instead of an image?"
I'm making a little application, that I personally think is cool but will probably be a waste of peoples time, and am altering the button in the drop down button to an upside down triangle using this html code ▼ . I'm not talking about setting the z-index or anything just simply placing a character for the little arrow. I thought about leaving it blank but I don't think users would understand that they are supposed to use the menu if I did so. Therefore I'm going to use the upside down triangle.
My CSS for the drop-down list is set up like this
select {
border: none;
overflow: hidden;
background: no-repeat right #ffffff;
-moz-appearance: none;
-webkit-appearance: none;
text-indent: 0.01px;
text-overflow: '';
}
Put the text inside an HTML tag with class .text-background, set CSS styles to
.text-background {
position: absolute;
z-index: 1;
}
and set z-index to the elements you want to be on top of the text with z-index higher than 1.
edit:
If you know what the size of the select element is, you probably want to position that text over the dropdown. This however will block the button.
JSFiddle
If you want better looks and functionality you can use a 3rd party libraries such as this or this.
edit 2:
I just found this CSS only solution given by Danield that's probably going to suite your needs better.
https://stackoverflow.com/a/13968900/1419575
Try This, as suggested by Paulo Bergantino:
JS Fiddle
Click Here
HTML
<div id="container">
<div id="background">
Text to have as background
</div>
Normal contents
</div>
CSS
#container{
position: relative;
}
#background{
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
z-index: -1;
overflow: hidden;
}
Here's a screenshot.
And my CSS markup:
.submitbutton
{
background: url("/Content/SiteImages/button.png") no-repeat scroll 0 0 transparent;
color: white;
cursor: pointer;
height: 26px;
width: 76px;
margin-left: 8px;
margin-top: 12px;
}
Also, I'd like the background image to stretch to fit into the dimensions of the button. Currently it's displaying full size (I think). Any tips for this new HTML web developer?
HTML buttons always have a border, simply setting border:0; should fix this.
Try stating
background: 0; outline: 0;
on it.
Note: This should only be used for testing purposes, disabling the outline makes people who navigate with their keyboards to not receive feedback when focusing on your button.
If it works, try using a more subtle outline.
We have buttons of many sizes and colors that use background images. There is a label on the background image itself, but we need to keep the button's text in the HTML for usability/accessibility. How do I make the text disappear in all browsers?
Modern browsers are easy, I just used -
color: transparent;
It's Internet Explorer 7 that I can't get to comply. I've tried these CSS properties, and none of them can remove the text completely without destroying my site's layout in the process.
font-size: 0px;
line-height: 0;
text-indent: -1000em;
display: block;
padding-left: 1000px;
I would very much appreciate any help.
Personally, I go for the all CSS approach:
{ display: block;
text-indent: -9999em;
text-transform: uppercase; }
For whatever reason, text-transform: uppercase; does the trick for IE7. Of course, you'll probably have your own CSS along with that for additional styling (if needed).
Additional to your
color: transparent;
You can use something like
padding-left: 3000px;
overflow: hidden;
Regards
In some cases you can use the propery "content" to change what is contained in the element, personally though I would use javascript to do it.
Just write blank text into the element.
If the button is an input submit button, use the image
<input type="image" src="/images/some_image.png" />
You can style this with CSS
input[type="image"] {
border: 1px solid red;
width: 150px;
height: 35px;
}
If they are links, Dave provided the answer.
How do I make the text disappear in
all browsers?
I suppoose you want the altarnative text to disappear if the image is loaded.
For this puprpose you can use this:
<INPUT TYPE="image" SRC="images/yourButtongif" HEIGHT="30" WIDTH="100" ALT="Text In Case There Is No Image" />
You can apply additional styles if needed, but this minimum will do the job for you.
If I understand the question correctly, this might work (I don't have IE7 to test on at the moment, so not 100% sure)
For markup like this:
<a href="javascript:return false;" class="button" id="buttonOK"><span
class="icon">Ok</span></a>
Use this css:
span.icon {
/*visibility: hidden;*/
display:block;
margin-left:-1000;
width:100px;
}
or this might work depending on your requirements for usability/accessibility:
span.icon {
visibility: hidden;
}
I don't know what users / programs the labels need to be in the HTML for, but if it's for text browsers and such, maybe you could insert a JavaScript that removes the labels onLoad?
JQuery or Prototype would make that very easy.