I'm pretty new to CSS so I was trying out some CSS-Battles just to learn some basics.
I was trying to get a circle with two mountains in it and had the idea to generate two divs, rotate them 45deg and then position them so they would match up with the picture needed.
For testing I painted the second mountain div black.
* {
margin: 0;
padding: 0;
}
.background {
align-items: center;
justify-content: center;
display: flex;
width: 100vw;
height: 100vh;
background-color: #293462;
}
.circle {
position: relative;
display: flex;
background-color: #FFF1C1;
width: 200px;
height: 200px;
border-radius: 50%;
overflow: hidden;
}
.mountain {
position: relative;
background-color: #FE5F55;
transform: rotate(45deg);
height: 200px;
width: 200px;
}
.mountain-1 {
background-color: #FE5F55;
top: 100px;
left: 41px;
}
.mountain-2 {
background-color: black;
top: 170px;
right: 70px
}
<div class="background">
<div class="circle">
<div class="mountain mountain-1">
</div>
<div class="mountain mountain-2">
</div>
</div>
</div>
Result
This was my first attempt. Then I noticed that when I set display of .mountain-1 to none the position of mountain-2 changes which I don't want and don't understand even after searching for solutions.
CSS changed
.mountain-1{
background-color: #FE5F55;
top: 100px;
left: 41px;
display: none;
}
Result
Also when I change the order of the two divs inside the HTML the result changes as well which in my mind makes not the most sense.
The main reason the two <div> elements are dependent on each other is because they both have the position CSS property set to relative. They inherit this from the parent element CSS .mountain.
This means the top, left, right, and bottom properties will be relative to other elements within the same container. To fix this, you need to set each mountain's position property to absolute. This means the position is set purely based on the values you use in top, left, right, or bottom. Also as a side note, if you do not have the parent element's position set to relative, using position: absolute will place the element based on the <body> element. So if you want the element's position to be based on the bounds of its parent, also set its parent's position to relative.
*{
margin: 0;
padding: 0;
}
.background{
align-items: center;
justify-content: center;
display: flex;
width: 100vw;
height: 100vh;
background-color: #293462;
}
.circle{
position:relative;
display: flex;
background-color: #FFF1C1;
width: 200px;
height: 200px;
border-radius: 50%;
overflow: hidden;
}
.mountain{
position: relative;
background-color: #FE5F55;
transform: rotate(45deg);
height: 200px;
width: 200px;
}
.mountain-1{
position: absolute;
top: 105px;
left: 40px;
}
.mountain-2{
position: absolute;
top:170px;
right: 70px
}
<div class="background">
<div class="circle">
<div class="mountain mountain-1">
</div>
<div class="mountain mountain-2">
</div>
</div>
</div>
I'm trying to center a text div on top of box div that has inline block. I tried using position: absolute on the text div. But when the browser screen is shrunk or expanded, the positioning of the text div gets messed up. How to fix this?
.mainDiv {
margin: auto;
width: 100%;
padding: 10px;
left: 300px;
text-align: center;
}
.box {
background-color: red;
width: 100px;
height: 100px;
display: inline-block;
}
.text {
background-color: blue;
position: absolute;
top: 70%;
left: 45%;
}
<div class="mainDiv">
<div class="box"></div>
<div class="text">text</div>
</div>
I assume you are using inline-block to center the .box inside the .main-div. Technically, with your current html structure you can't center the .text element on the .box one, but you can center it on .main-div, which is essentially the same thing in your example.
I would start by adding position: relative to .main-div. An absolutely positioned element is positioned based on it's nearest ancestor that has a positioning context. The easiest way to set this is to add position: relative.
Then with your .text element you can adjust to:
.text {
background-color: blue;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50% );
}
This works because top and left position the top and left element from the top and left of its parent. So the top of .text would start 50% of the way down .main-div, and likewise with left. This would leave your text too far down and to the left.
transform: translate values work differently - they are based on the size of the element itself. So -50% will move an element back half of its width or height. By setting it on both width and height we are moving the .text so that instead of its top and left edges being at 50%, it's center is at 50%.
.mainDiv {
position: relative; /* added to make .text align relative to this, not the document */
margin: auto;
width: 100%;
padding: 10px;
/* left: 300px; (I removed this for demo purposes, but if you need it you can add it back in) */
text-align: center;
}
.box {
background-color: red;
width: 100px;
height: 100px;
display: inline-block;
}
.text {
background-color: blue;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50% ); /*pull the text left and up 50% of the text's size*/
}
<div class="mainDiv">
<div class="box"></div>
<div class="text">text</div>
</div>
The markup for text should be written first then the box. Then you may try using block instead of inline-block, then set the width of the text to 100 percent, display block and 'margin: 0 auto'. Also, maybe consider using the appropriate semantic tags as opposed to divs if you can. Also, I suspect the top and left rules to be causing the text to not align properly. You should no longer need position:absolute either.
If you want, you can make the blue div a child of the red div so that the blue div will always be relative to the red div. I also added position:relative to the red div, and used transform:translate to the blue div.
If I'm not mistaken, this is also responsive, so try shrinking your browser.
.mainDiv {
margin: auto;
width: 100%;
padding: 10px;
left: 300px;
text-align: center;
}
.box {
background-color: red;
width: 100px;
height: 100px;
display: inline-block;
position:relative;
}
.text {
background-color: blue;
position: absolute;
left: 50%;
transform:translate(-50%, -100%);
}
<div class="mainDiv">
<div class="box">
<div class="text">text</div>
</div>
</div>
.mainDiv {
text-align: center;
}
.box {
background-color: red;
width: 100px;
height: 100px;
display: inline-block;
margin-top: 19px;
}
.text {
background-color: blue;
position: absolute;
margin: -19px 0 0 36px;
}
<div class="mainDiv">
<div class="box">
<div class="text">text</div>
</div>
</div>
I want to place a div (with position:absolute;) element in the center of the window. But I'm having problems doing so, because the width is unknown.
I tried the following CSS code, but it needs to be adjusted because the width is responsive.
.center {
left: 50%;
bottom: 5px;
}
How can I achieve this?
This works for me:
#content {
position: absolute;
left: 0;
right: 0;
margin-left: auto;
margin-right: auto;
width: 100px; /* Need a specific value to work */
}
<body>
<div>
<div id="content">
I'm the content
</div>
</div>
</body>
<body>
<div style="position: absolute; left: 50%;">
<div style="position: relative; left: -50%; border: dotted red 1px;">
I am some centered shrink-to-fit content! <br />
tum te tum
</div>
</div>
</body>
Responsive Solution
Here is a good solution for responsive design or unknown dimensions in general if you don't need to support IE8 and lower.
.centered-axis-x {
position: absolute;
left: 50%;
transform: translate(-50%, 0);
}
.outer {
position: relative; /* or absolute */
/* unnecessary styling properties */
margin: 5%;
width: 80%;
height: 500px;
border: 1px solid red;
}
.inner {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
/* unnecessary styling properties */
max-width: 50%;
text-align: center;
border: 1px solid blue;
}
<div class="outer">
<div class="inner">I'm always centered<br/>doesn't matter how much text, height or width i have.<br/>The dimensions or my parent are irrelevant as well</div>
</div>
Here is a JS Fiddle
The clue is, that left: 50% is relative to the parent while the translate transform is relative to the elements width/height.
This way you have a perfectly centered element, with a flexible width on both child and parent. Bonus: this works even if the child is bigger than the parent.
You can also center it vertically with this (and again, width and height of parent and child can be totally flexible (and/or unknown)):
.centered-axis-xy {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%,-50%);
}
Keep in mind that you might need transform vendor prefixed as well. For example -webkit-transform: translate(-50%,-50%);
<div style='position:absolute; left:50%; top:50%; transform: translate(-50%, -50%)'>
This text is centered.
</div>
This will center all the objects inside div with position type static or relative.
I just wanted to add if someone wants to do it with a single div tag then here is the way out:
Taking width as 900px.
#styleName {
position: absolute;
left: 50%;
width: 900px;
margin-left: -450px;
}
In this case one should know the width beforehand.
Responsive solution
Assuming the element in the div, is another div...
This solution works fine:
<div class="container">
<div class="center"></div>
</div>
The container can be any size (must be position relative):
.container {
position: relative; /* Important */
width: 200px; /* Any width */
height: 200px; /* Any height */
background: red;
}
The element (div) can also be any size (must be smaller than the container):
.center {
position: absolute; /* Important */
top: 50%; /* Position Y halfway in */
left: 50%; /* Position X halfway in */
transform: translate(-50%,-50%); /* Move it halfway back(x,y) */
width: 100px; /* Any width */
height: 100px; /* Any height */
background: blue;
}
The result will look like this. Run the code snippet:
.container {
position: relative;
width: 200px;
height: 200px;
background: red;
}
.center {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 100px;
height: 100px;
background: blue;
}
<div class="container">
<div class="center"></div>
</div>
I found it very helpful.
Absolute Centre
HTML:
<div class="parent">
<div class="child">
<!-- content -->
</div>
</div>
CSS:
.parent {
position: relative;
}
.child {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
margin: auto;
}
Demo:
http://jsbin.com/rexuk/2/
It was tested in Google Chrome, Firefox, and Internet Explorer 8.
This works for vertical and horizontal:
#myContent{
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
margin: auto;
}
And if you want make an element center of the parent, set the position of the parent relative:
#parentElement{
position: relative
}
For vertical center align, set the height to your element. Thanks to Raul.
If you want make an element center of the parent, set the position of the parent to relative
If you need to center horizontally and vertically too:
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
Searching for a solution, I got the previous answers and could make content centered with Matthias Weiler's answer, but using text-align:
#content{
position: absolute;
left: 0;
right: 0;
text-align: center;
}
It worked with Google Chrome and Firefox.
I understand this question already has a few answers, but I've never found a solution that would work in almost all classes that also makes sense and is elegant, so here's my take after tweaking a bunch:
.container {
position: relative;
}
.container .cat-link {
position: absolute;
left: 50%;
top: 50%;
transform: translate3d(-50%,-50%,0);
z-index: 100;
text-transform: uppercase; /* Forces CSS to treat this as text, not a texture, so no more blurry bugs */
background-color: white;
}
.color-block {
height: 250px;
width: 100%;
background-color: green;
}
<div class="container">
<a class="cat-link" href="">Category</a>
<div class="color-block"></div>
</div>
It is saying give me a top: 50% and a left: 50%, then transform (create space) on both the X/Y axis to the -50% value, in a sense "create a mirror space".
As such, this creates an equal space on all the four points of a div, which is always a box (has four sides).
This will:
Work without having to know the parent's height / width.
Work on responsive.
Work on either X or Y axis. Or both, as in my example.
I can't come up with a situation where it doesn't work.
Flexbox can be used to center an absolute positioned div.
display: flex;
align-items: center;
justify-content: center;
.relative {
width: 275px;
height: 200px;
background: royalblue;
color: white;
margin: auto;
position: relative;
}
.absolute-block {
position: absolute;
height: 36px;
background: orange;
padding: 0px 10px;
bottom: -5%;
border: 1px solid black;
}
.center-text {
display: flex;
justify-content: center;
align-items: center;
box-shadow: 1px 2px 10px 2px rgba(0, 0, 0, 0.3);
}
<div class="relative center-text">
Relative Block
<div class="absolute-block center-text">Absolute Block</div>
</div>
This is a mix of other answers, which worked for us:
.el {
position: absolute;
top: 50%;
margin: auto;
transform: translate(-50%, -50%);
}
This works on any random unknown width of the absolute positioned element you want to have in the centre of your container element:
Demo
<div class="container">
<div class="box">
<img src="https://picsum.photos/200/300/?random" alt="">
</div>
</div>
.container {
position: relative;
width: 100%;
}
.box {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
display: flex;
justify-content: center;
align-items: center;
}
It's possible to center an element that has aspect-ratio:1 with position absolute by using calc()
In the following example I'm using a circle because it's easier to explain and understand, but the same concept can be applied to any shape with aspect-ratio:1 meaning that the width and height are equal. (about aspect-ratio)
:root{
--diameter: 80px;
}
div{
position:absolute;
top: calc(50% - var(--diameter)/2);
right:calc(50% - var(--diameter)/2);
aspect-ratio:1;
width:var(--diameter);
border-radius:100%;
background:blue;
}
<div/>
Explanation
As far as I know, this is impossible to achieve for an unknown width.
You could - if that works in your scenario - absolutely position an invisible element with 100% width and height, and have the element centered in there using margin: auto and possibly vertical-align. Otherwise, you'll need JavaScript to do that.
I'd like to add on to bobince's answer:
<body>
<div style="position: absolute; left: 50%;">
<div style="position: relative; left: -50%; border: dotted red 1px;">
I am some centered shrink-to-fit content! <br />
tum te tum
</div>
</div>
</body>
Improved: /// This makes the horizontal scrollbar not appear with large elements in the centered div.
<body>
<div style="width:100%; position: absolute; overflow:hidden;">
<div style="position:fixed; left: 50%;">
<div style="position: relative; left: -50%; border: dotted red 1px;">
I am some centered shrink-to-fit content! <br />
tum te tum
</div>
</div>
</div>
</body>
Just wrap your content with a new div and use display flex and then use align-items: center; and justify-content: center; take a look...
<div class="firstPageContainer">
<div class="firstPageContainer__center"></div>
</div>
.firstPageContainer{
display: flex;
width: 1000px;
height: 1000px;
justify-content: center;
align-items: center;
background-color: #FF8527;
}
.firstPageContainer__center{
position:absolute;
width: 50px;
height: 50px;
background-color: #3A4147;
}
Sass/Compass version of a previous responsive solution:
#content {
position: absolute;
left: 50%;
top: 50%;
#include vendor(transform, translate(-50%, -50%));
}
This worked for me:
<div class="container><p>My text</p></div>
.container{
position: absolute;
left: 0;
right: 0;
margin-left: auto;
margin-right: auto;
}
My preferred centering method:
position: absolute;
margin: auto;
width: x%
absolute block element positioning
margin auto
same left/right, top/bottom
A JSFiddle is here.
Here's a useful jQuery plugin to do this. I found it here. I don't think it's possible purely with CSS.
/**
* #author: Suissa
* #name: Absolute Center
* #date: 2007-10-09
*/
jQuery.fn.center = function() {
return this.each(function(){
var el = $(this);
var h = el.height();
var w = el.width();
var w_box = $(window).width();
var h_box = $(window).height();
var w_total = (w_box - w)/2; //400
var h_total = (h_box - h)/2;
var css = {"position": 'absolute', "left": w_total + "px", "top":
h_total + "px"};
el.css(css)
});
};
#container
{
position: relative;
width: 100%;
float: left
}
#container .item
{
width: 50%;
position: absolute;
margin: auto;
left: 0;
right: 0;
}
HTML:
<div id='parent'>
<div id='child'></div>
</div>
CSS:
#parent {
display: table;
}
#child {
display: table-cell;
vertical-align: middle;
}
I know I already provided an answer, and my previous answer, along with others given, work just fine. But I have used this in the past and it works better on certain browsers and in certain situations. So I thought I'd give this answer as well. I did not "Edit" my previous answer and add it because I feel this is an entirely separate answer and the two I have provided are not related.
The accepted solution of this question didn't work for my case...
I'm doing a caption for some images and I solved it using this:
top: 0;
left: 0;
right: 0;
margin-left: auto;
margin-right: auto;
display: flex;
align-items: center;
figure {
position: relative;
width: 325px;
display: block
}
figcaption{
position: absolute;
background: #FFF;
width: 120px;
padding: 20px;
-webkit-box-shadow: 0 0 30px grey;
box-shadow: 0 0 30px grey;
border-radius: 3px;
display: block;
top: 0;
left: 0;
right: 0;
margin-left: auto;
margin-right: auto;
display: flex;
align-items: center;
}
<figure>
<img src="https://picsum.photos/325/600">
<figcaption>
But as much
</figcaption>
</figure>
HTML
<div id='parent'>
<div id='centered-child'></div>
</div>
CSS
#parent {
position: relative;
}
#centered-child {
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
margin: auto auto;
}
http://jsfiddle.net/f51rptfy/
This solution works if the element has width and height
.wrapper {
width: 300px;
height: 200px;
background-color: tomato;
position: relative;
}
.content {
width: 100px;
height: 100px;
background-color: deepskyblue;
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
margin: auto;
}
<div class="wrapper">
<div class="content"></div>
</div>
.center {
position: absolute
left: 50%;
bottom: 5px;
}
.center:before {
content: '';
display: inline-block;
margin-left: -50%;
}
This is a trick I figured out for getting a DIV to float exactly in the center of a page. It is really ugly of course, but it works in all browsers.
Dots and Dashes
<div style="border: 5 dashed red;position:fixed;top:0;bottom:0;left:0;right:0;padding:5">
<table style="position:fixed;" width="100%" height="100%">
<tr>
<td style="width:50%"></td>
<td style="text-align:center">
<div style="width:200;border: 5 dashed green;padding:10">
Perfectly Centered Content
</div>
</td>
<td style="width:50%"></td>
</tr>
</table>
</div>
Cleaner
Wow, those five years just flew by, didn't they?
<div style="position:fixed;top:0px;bottom:0px;left:0px;right:0px;padding:5px">
<table style="position:fixed" width="100%" height="100%">
<tr>
<td style="width:50%"></td>
<td style="text-align:center">
<div style="padding:10px">
<img src="Happy.PM.png">
<h2>Stays in the Middle</h2>
</div>
</td>
<td style="width:50%"></td>
</tr>
</table>
</div>
HTML:
<div class="wrapper">
<div class="inner">
content
</div>
</div>
CSS:
.wrapper {
position: relative;
width: 200px;
height: 200px;
background: #ddd;
}
.inner {
position: absolute;
top: 0; bottom: 0;
left: 0; right: 0;
margin: auto;
width: 100px;
height: 100px;
background: #ccc;
}
This and more examples here.
how to make absolute center horizontal and vertical a div with fluid width and height using css?
Thanks in advance for helping.
#div_parent{
background:#ccc;
position:relative;
}
.div_child{
background-color:#338BC7;
position: absolute;
left: 50%;
width: auto;
height: auto;
padding: 20px;
top:25%;
background: blue;
color: white;
text-align: center;
border:1px solid #ccc;
}
<div id="div_parent">
<div class="div_child">
<p>Centered In The Middle Of The Page.</p>
</div>
</div>
A couple of problems with your code:
You do not have a width and height specified on your html and body, without which any of descendent elements wouldn't have a reference to set their positions and/or dimensions in percent units.
You do not have dimensions (width/height) specified on your #div_parent, without which you cannot position its absolutely positioned child (which is relative to it) to the vertical center. Moreover, as you want to position your .div_child to the center of the page, why do you have a parent wrapped around it anyway.
Apart from fixing the above, a trick which is usually used to align elements both horizontally and vertically is to use transform: translate to shift it back by 50%.
Like this:
.div_child {
position: absolute; left: 50%; top: 50%;
transform: translate(-50%, -50%);
...
}
Fiddle: http://jsfiddle.net/abhitalks/Lnqvqnkn/
Snippet:
* { box-sizing: border-box; paddin:0; margin: 0; }
html, body { height: 100%; width: 100%; }
#div_parent{ height: 100%; width: 100%; background: #ccc; position: relative;}
.div_child {
background-color: #338BC7;
position: absolute; left: 50%; top: 50%;
transform: translate(-50%, -50%);
width: auto; height: auto;
padding: 20px; color: white; text-align: center; border: 1px solid #ccc;
}
<div id="div_parent">
<div class="div_child">
<p>Centered In The Middle Of The Page.</p>
</div>
</div>
When I need fluid width, I prefer using this method:
CSS
.background { display: table; width: 100%; height: 100%; position: absolute; left: 0; top: 0; }
.background > div { display: table-cell; vertical-align: middle; text-align: center; }
HTML
<div>
<div>
<p>Centered In The Middle Of The Page.</p>
</div>
</div>
Demo on jsfiddle.
Hope it works for you.