I want to display an SVG image inside a position:fixed div. I have
<div class="main">
<svg class="svg" viewBox="0 0 180 100">
<rect height="100%" width="100%" fill="#003300"></rect>
</svg>
</div>
and style
.main {
position:fixed;
left: 100px;
height: 100%;
width:100%;
background: #33AAAA;
}
.svg {
display: block;
height: 100%;
width: 100%;
position:static;
}
I want to center the SVG horizontally and vertically. I get a strange behavior. Changing the size of the browser window, shows that when the svg is smaller than available width, it is weirdly placed. For example: there is more space on the left than on the right.
Codepen (including CSS reset): Codepen
You are setting the width to 100%, then shifting it over by 100px. The width is still calculated as whatever the 100% width is. To center it the way you want, you will need to subtract 100px from the width or nest things differently.
.main {
position:fixed;
left:100px;
height: 100%;
width:calc(100% - 100px);
background: #33AAAA;
}
It looks like its because you have the left: 100px in your main class. If you take that out it centers correctly.
here is the main class that should work:
.main {
position:fixed;
left:100px;
height: 100%;
right: 0;
top:0;
bottom:0;
background: #33AAAA;
}
Related
How to automatically adjust size of the div which is horizontally centred, using another div which has position: fixed property?
To better understand what I mean please take a look at the picture below. Div A is a fixed div with a fixed size and div B is a div which is horizontally centred. I want div B to resize (when I resize browser window) in a such way so right border of A and left border of B never overlap (ideally, if the distance between the borders kept the same).
I know that this can be fairly easy done using JavaScript by reacting on resize events, but I'm wondering is there any way to achieve this in pure CSS?
Here's another way. This should work in older browsers too.
<style>
div {
border: 1px solid red;
height: 100px; }
#A {
position: fixed;
width: 150px; }
#B {
margin: 0px 155px; }
</style>
<div id="A">Stuff</div>
<div id="B">Stuff</div>
How about this:
#a{
width:200px;
}
#b{
width:calc(100% - 400px);
}
Just set the width of B to be 100% of screen width minus twice the width of A and their borders will touch.
When an element is given the settings position: absolute or position: fixed You can change the width of an element by using the left and right properties.
Simply add the same amount to the right as you would to the left
#left {
position: absolute;
width: 150px;
}
#middle {
position: absolute;
left: 165px;
right: 165px;
overflow: auto;
}
/* For demo purposes */
html, body, div { height: 100%; margin: 0; } div { background: red; } #overflow { height: 200%; }
<div id="left"></div>
<div id="middle">
<div id="overflow"></div>
</div>
I have this page:
http://fetr.zonedesign.ro/contact/
I have a map and a map over blue div I would like to display at center
This is code HTML:
<div style="float:left;width:100%;padding:0 10%;text-
align:center;margin:10px auto;display:block;">
<div class="date-contact">proba</div>
<?php echo do_shortcode( '[huge_it_maps id="1"]' ); ?>
</div>
This is code CSS:
#media (min-width: 800px) {
.date-contact
{
width:300px;
height:150px;
background:blue;
position:absolute;
z-index:10;
}
}
I tried to use margin: 0 auto but unfortunately not working.
Can you please help me solve this problem?
Thanks in advance!
if you want to keep its position absolute you can use calc for top/left but you need to know the height/width of your div.
Further, the parent of this blue box needs to be position relative/absolute/or fixed:
here's a demo
<div></div>
div {
background: blue;
position: absolute;
width: 100px;
height: 100px;
top: calc(50% - 50px);
left: calc(50% - 50px);
}
My suggestion is :
wrap the two div's div#huge_it_google_map1_container and div.date-contact with a parent div. The parent div's width will be same as that of div#huge_it_google_map1_container.
So, the html will be:
<div class="map_parent_wrapper">
<div id="huge_it_google_map1_container"></div>
<div class="date-contact"></div>
</div>
The css will be as follows:
.map_parent_wrapper {
position:relative
}
.date-contact {
position:absolute;
top:0;
left:0;
bottom:0;
right:0;
margin:auto;
}
.date-contact {
background: none repeat scroll 0 0 blue;
clear: both;
height: 150px;
margin: 0 auto -208px;
position: relative;
width: 300px;
z-index: 10;
}
Your Blue div is absolutely positioned so its hard to get a center aliment,
Make it relatively positioned and align center using margin 0px auto;
Now give a negative margin bottom of -208 px so that the blue div overlaps the map.
Set the required z-index so that the blue box is above the map.
-Cheers...!!
EDIT: I didn't realize you site until your edit. You should go for a position: absolute in your .date-contact style. So, my recommended code won't apply here. But you can benefit the explanations I hope.
First of all, you cannot use margin: 0 auto with position: absolute. And using classes in a seperated css file, instead of using inline styles, always help you to see your code clearly. With this seperation of concerns, you'll also be applying the DRY principle in your code.
I tidied up your code to provide your desired effect. Please see and if you'll have questions, fire away. Will try my best to help.
HTML
<div class="outer-div">
<div class="date-contact">proba</div>
</div>
CSS
.date-contact {
width:300px;
height:150px;
background:blue;
margin: 0 auto;
}
.outer-div {
text-align:center;
margin:100px auto;
padding:0 10%;
}
NEW ANSWER FOR EDITTED QUESTION
The other answers say that you should absolutely position your blue div. I say if you do that you'll never make it show in the center. The easy way of doing this, is to place your blue div in another div which is positioned absolute. Your blue div will show in center just like you wanted with margin: 0 auto; Also, I placed your blue div inside the div#huge_it_google_map1 because I believe it's where it belongs.
HTML
<div class="yourMapDiv">
<div class="outer-div" id="huge_it_google_map1">
<div class="date-contact">proba</div>
<!-- Your other divs and map contents inside the div#huge_it_google_map1 -->
</div>
</div>
CSS
.yourMapDiv {
position: relative;
background-color: yellow;
padding: 10px;
}
.outer-div {
position: absolute;
top:0;
left:0;
width:100%;
text-align:center;
background-color:red; /* Remove this attribute to see your map div (yellow) */
}
.date-contact {
background-color:blue;
width:300px;
/*height:150px;*/
margin: 0 auto;
/* or "margin: 50px auto 0" if you like to give a little margin-top for 50px */
}}
For your convenience, this is the working fiddle.
I hope you achieve what you wanted.
Blue div has position : absolute. For centered displaying you need to use left and top:
left: 50% - width block( example 40%)
top:50% - height block( example 40%)
Lets say I have a div of heigh 400px and width 400px.
<div style="width:400px; height:400px; background:#CCC;" align="center">
<img src="/static/{{media_info.media_file}}" />
</div>
Now if I have a image of height 350 and width 200 px I want it to be adjusted in this div. I mean it adjust inside the div being child to the div. It should not fit to the div neither stretch. Just fit in the center.
Like div should be taken as 100% and image should be in its ratio.
Remaining 50 px in height and 200 px in width should be left. like buttom and top leaving 25 25 px and left and right leaving 100 100 px.
Also if the image is of say width 800px and height 700 px same way the div height and width should be considered as 100 percent and the image should lie in the middle without any stretch
I am not a front end developer :(
So you want the image to be centered inside the div, in its original size, and any overflow simply cut of when the image is larger than the div in any dimension?
Well you could just set it as a centered background-image, instead of using in actual img element.
If that’s not an option, position it absolutely – -50% from either “side” (top, left, right and bottom), and use margin:auto to center it:
div { position:relative; width:400px; height:400px; margin:10px; background:#ccc;
overflow:hidden; }
div img { position:absolute; top:-50%; left:-50%; right:-50%;
bottom:-50%; margin:auto; }
<div id="div1"><img src="http://placehold.it/350x250/ff9999/000000"></div>
<div id="div2"><img src="http://placehold.it/800x700/ff9999/000000"></div>
You can achieve this using transform property of css.
Here is the fiddle
div {
position: relative;
}
img {
display: block;
margin:0 auto;
max-width: 100%;
max-height: 100%;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
Note, I cleaned up the inline styles, just to make it clear.
http://jsfiddle.net/s4ja2q1z/4/
div {
width: 400px;
height: 400px;
background: lime;
text-align: center;
position: relative;
}
img {
max-width: 100%;
max-height: 100%;
width: auto;
height: auto;
position: absolute;
margin: auto;
left: 0;
top: 0;
right: 0;
bottom: 0;
}
EDIT: Added fixes if the image is taller than the container.
Try putting max-width and max-height on the image:
<img style="max-width: 100%;max-height: 100%;" src="/static/{{media_info.media_file}}" />
This will keep the image dimensions limited to a maximum width and height of the parent container (aka 400px in this case) and it will scale down if you ever change your parent div's dimensions without changing any ratios that would cause stretching.
You can do it this way too by using the table-cell property.
http://codepen.io/Edrees21/pen/XJoEmp
<div class="container">
<img src="http://placehold.it/350x200/aEEAEE" />
</div>
.container {
width: 400px;
height: 400px;
text-align: center;
background-color: #cccccc;
vertical-align: middle;
display: table-cell;
}
I would set the image as a background of your div and then change the size of it using background-size: contain.
This will make your image not be distorted, but still fill the entire div.
<div style="width:400px; height:400px; background-image:url("image.jpeg"); background-repeat:no-repeat; background-size: contain; background-position: center;">
</div>
div {
text-align: center;
}
img {
max-width: 400px;
max-height: 400px;
vertical-align: middle;
}
This is a little tricky to explain, but: I want a responsive-height div (height: 100%) that will scale the width proportional to the height (not vice versa).
I know of this method utilising a padding-top hack to make the height proportional to the width, but I need it to work the other way around. Having said that, I'm not hugely keen on the additional requirement of absolutely-positioned elements for the content in that method, so I realise I may well be asking for the moon on a stick here.
To help visualise, here is an image:
...and here is a jsFiddle, illustrating pretty much the same thing.
It is worth noting that I am already using the :before and :after pseudo-elements to vertically-align the content of the box I want to scale proportionally.
I would really enjoy not having to revert to jQuery, just because there's going to be an inherent requirement for resize handlers and generally more debugging all round... but if that's my only choice, then fiat.
I've been wondering about a pure-css solution to this problem for a while. I finally came up with a solution using ems, which can be progressively enhanced using vws:
See codepen link for full working demo and explanation:
http://codepen.io/patrickkunka/pen/yxugb
Simplified version:
.parent {
font-size: 250px; // height of container
height: 1em;
}
.child {
height: 100%;
width: 1em; // 100% of height
}
Oh,you could probably use that "padding-top" trick.
width: 50%;
height: 0;
padding-bottom: 50%;
http://absolide.tumblr.com/post/7317210512/full-css-fluid-squares
Or:
.square-box{
position: relative;
width: 50%;
overflow: hidden;
background: #4679BD;
}
.square-box:before{
content: "";
display: block;
padding-top: 100%;
}
http://codeitdown.com/css-square-rectangle/
The vertical padding in CSS is related to the width of the element, not the height.
The font solution requires that the height is known. I have found a solution for making an element proportional inside a parent div with unknown widths and heights. Here is a demo.
The trick I'm using is to have an image used as a spacer. The code explained:
<div class="heightLimit">
<img width="2048" height="2048" class="spacer"
src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAA
P///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">
<div class="filler">
<div class="proportional">
</div>
</div>
</div>
So it is not the prettiest with two extra divs and a useless image. But it could be worse. The image element needs to have width and height with the desired dimensions. Width and height need to be as large as the maximum size allowed (a feature!).
The css:
.heightLimit {
position: absolute;
top: 0;
left: 0;
height: 100%;
width: auto;
max-width: 100%;
overflow: hidden;
}
This element is to limit the height, but to expand horizontally (width: auto) although never beyond the parent (max-width). Overflow needs to be hidden because some children will protrude outside the div.
.spacer {
width: auto;
max-height: 100%;
visibility: hidden;
}
This image is invisible and scaled proportionally to the height, while the width is adjusted and forces the width of the parent to also be adjusted.
.filler {
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
This element is required to fill the space with an absolutely positioned container.
.proportional {
position: relative;
width: 100%;
height: 0;
padding-bottom: 100%;
}
And here our proportional element gets a height proportional to the width with the familiar padding-bottom trick.
Unfortunately, there is a bug in Chrome and IE so if you modify the parent element using Javascript, such as in my demo, the dimensions will not be updated. There is a hack that can be applied to solve that, as shown in my demo.
You can use view height (vh) as the unity for the width.
Here is an example with the 20px margin you asked for.
.parent {
margin : 20px;
}
.child {
width: calc(100vh - 40px);
height : calc(100vh - 40px);
margin:0 auto;
background: red;
box-sizing:border-box;
padding:10px;
}
See the fiddle :
https://jsfiddle.net/svobczp4/
Based off of #kunkalabs's answer (which is really smart) I've come up with a solution that lets you preserve the inherited font-size.
HTML:
<div id='rect'>
<div id='content'>Text</div>
</div>
CSS:
#rect {
font-size: 1000%;
height: 1em;
width: 1em;
position: relative;
}
#content {
font-size: 10%;
}
So basically the font-size of #content is (100 / $rectFontSize) * 100 percent of the rectangle. If you need a definite pixel size for the rectangle, you can set the #rect's parent's font-size…otherwise just adjust the font-size until it's about where you want it to be (and enrage your designer in the process).
You can achieve that by using SVG.
It depends on a case, but in some it is really usefull. As an example - you can set background-image without setting fixed height or use it to embed <iframe> with ratio 16:9 and position:absolute.
For 3:2 ratio set viewBox="0 0 3 2" and so on.
Example:
div{width:35%;background-color:red}
svg{width:100%;display:block;visibility:hidden}
<div>
<svg viewBox="0 0 3 2"></svg>
</div>
On newer browsers, we can use aspect-ratio with a fixed height, and the width will be calculated accordingly.
img {
aspect-ratio: 1.2;
height: 250px;
max-width: 500px;
}
But the browser support for aspect-ratio is not good enough. I liked the SVG solution proposed by #Jakub Muda, except for the fact that it requires modifying the markup. I have moved the SVG to CSS by including it using content property. On newer browsers, it disables the SVG hack and switches to aspect-ratio property.
document.querySelector('.nav').addEventListener('click', function(e) {
var index = parseInt(e.target.dataset.index);
if (!index) {
return;
}
var elements = document.querySelectorAll('.box');
for (var i = elements.length; i > 0; i--) {
elements[i - 1].classList.toggle('hide', i !== index);
}
});
.wrapper {
max-width: 500px;
margin: 0 auto;
width: 100%;
height: 250px;
text-align: center;
background: green;
}
.box {
display: inline-flex;
position: relative;
max-width: 100%;
}
/* SVG Hack */
.box::before {
display: block;
line-height: 0;
max-width: 100%;
content: 'test';
}
[data-aspect-ratio="1"]::before {
content: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1 1' height='250'></svg>");
}
[data-aspect-ratio="2"]::before {
content: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 2 1' height='250'></svg>");
}
[data-aspect-ratio="3"]::before {
content: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 3 1' height='250'></svg>");
}
#supports (aspect-ratio1: 1) {
/* Modern browsers */
.box {
height: 100%;
background: green;
}
.box::before {
display: none;
}
[data-aspect-ratio="1"] {
aspect-ratio: 1;
}
[data-aspect-ratio="2"] {
aspect-ratio: 2;
}
[data-aspect-ratio="3"] {
aspect-ratio: 2;
}
}
.content {
position: absolute;
left: 0;
top: 0;
width: 100%;
height: 100%;
}
.content>svg {
display: block;
width: 100%;
position: absolute;
top: 50%;
left: 50%;
height: auto;
transform: translate(-50%, -50%);
}
.nav {
text-align: center;
}
.hide {
display: none;
}
<!doctype html>
<html lang="en">
<head>
<title>Width proportional to height in CSS</title>
</head>
<body>
<div class="wrapper">
<div class="box" data-aspect-ratio="1">
<div class="content">
<svg viewBox="0 0 100 100" width="100" height="100" xmlns="http://www.w3.org/2000/svg"><rect x="2" y="2" width="96" height="96" style="fill:#DEDEDE;stroke:#555555;stroke-width:2"/><text x="50%" y="50%" font-size="18" text-anchor="middle" alignment-baseline="middle" font-family="monospace, sans-serif" fill="#555555">100×100</text></svg>
</div>
</div>
<div class="box hide" data-aspect-ratio="2">
<div class="content">
<svg viewBox="0 0 200 100" width="200" height="100" xmlns="http://www.w3.org/2000/svg"><rect x="2" y="2" width="196" height="96" style="fill:#DEDEDE;stroke:#555555;stroke-width:2"/><text x="50%" y="50%" font-size="18" text-anchor="middle" alignment-baseline="middle" font-family="monospace, sans-serif" fill="#555555">200×100</text></svg>
</div>
</div>
<div class="box hide" data-aspect-ratio="3">
<div class="content">
<svg viewBox="0 0 300 100" width="300" height="100" xmlns="http://www.w3.org/2000/svg"><rect x="2" y="2" width="296" height="96" style="fill:#DEDEDE;stroke:#555555;stroke-width:2"/><text x="50%" y="50%" font-size="18" text-anchor="middle" alignment-baseline="middle" font-family="monospace, sans-serif" fill="#555555">300×100</text></svg>
</div>
</div>
</div>
<div class="nav">
<button data-index="1">1</button>
<button data-index="2">2</button>
<button data-index="3">3</button>
</div>
</body>
</html>
Make the parent DIV behave like a table cell and align the child element vertically. No need to do any padding tricks.
HTML
<div class="parent">
<img src="foo.jpg" />
</div>
CSS
.parent { width:300px; height:300px; display:table-cell; vertical-align:middle; }
How can I display an image with a 100% width and fixed height, but not resized. I mean, the part that doesn't fit the fixed dimensions to be cropped. E.g.:
Low resolution view:
High resolution view:
(not exactly, all images should fit the same % width and the same height pixels)
This could be the code:
HTML:
<a id="image">
<img src="url" />
</a>
CSS:
#image img {
width: 100%;
height: 250px;
}
I just found this, and it might help you some:
3 Easy and Fast CSS Techniques for Faux Image Cropping
you may use text-align and line-height on parent and reduce virtually size of image with negative margin:
http://codepen.io/anon/pen/bqoEg
#image {
height:200px;
line-height:200px;/* same value as height, classic method for valign */
text-align:center;/* horizontal center inline boxe / text */
width:50%;
margin:2em auto;
overflow:hidden;
border:solid;
}
#image img {
margin: -250px -100%; /* reduce virtually initial size/space needed for the image */
vertical-align:middle;/* center it on base-line */
}
/* demo purpose */
#image:hover {
height:100px;
line-height:100px;
margin:50px auto;
}
a few more examples : http://codepen.io/gcyrillus/pen/wsjBJ / http://codepen.io/gcyrillus/pen/BdtEj and http://codepen.io/gcyrillus/pen/etxky this question comes up very often.
Easy way is background when image has no meaning in the content .
This is how I've achieved it:
#image { /* the parent element */
float:left;
overflow:hidden;
height: 250px;
}
#image > img { /* the image */
height: auto;
width: 100%;
}
<div>
<div class = image>
<img src />
</div>
</div>
.image {
position: absolute;
left: -50%;
top: -50%;
}