Positioning <div> element at center of screen
JavascriptCssHtmlJavascript Problem Overview
I want to position a <div> (or a <table>) element at the center of the screen irrespective of screen size. In other words, the space left on 'top' and 'bottom' should be equal and space left on 'right' and 'left' sides should be equal. I would like to accomplish this with only CSS.
I have tried the following but it is not working:
<body>
<div style="top:0px; border:1px solid red;">
<table border="1" align="center">
<tr height="100%">
<td height="100%" width="100%" valign="middle" align="center">
We are launching soon!
</td>
</tr>
</table>
</div>
</body>
Note:
It is either way fine if the <div> element (or <table>) scrolls with the website or not. Just want it to be centered when the page loads.
Javascript Solutions
Solution 1 - Javascript
The easy way, if you have a fixed width and height:
#divElement{
position: absolute;
top: 50%;
left: 50%;
margin-top: -50px;
margin-left: -50px;
width: 100px;
height: 100px;
}
Please don't use inline styles! Here is a working example http://jsfiddle.net/S5bKq/.
Solution 2 - Javascript
With transforms being more ubiquitously supported these days, you can do this without knowing the width/height of the popup
.popup {
position: fixed;
top: 50%;
left: 50%;
-webkit-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
}
Easy! JSFiddle here: http://jsfiddle.net/LgSZV/
Update: Check out https://css-tricks.com/centering-css-complete-guide/ for a fairly exhaustive guide on CSS centering. Adding it to this answer as it seems to get a lot of eyeballs.
Solution 3 - Javascript
Set the width and height and you're good.
div {
position: absolute;
margin: auto;
top: 0;
right: 0;
bottom: 0;
left: 0;
width: 200px;
height: 200px;
}
If you want the element dimensions to be flexible (and don't care about legacy browsers), go with XwipeoutX's answer.
Solution 4 - Javascript
It will work for any object. Even if you don't know the size:
.centered {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
Solution 5 - Javascript
Now, is more easy with HTML 5 and CSS 3:
<!DOCTYPE html>
<html>
<head>
<title>TODO supply a title</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
body > div {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
display: flex;
flex-wrap: wrap;
align-items: center;
justify-content: center;
}
</style>
</head>
<body>
<div>
<div>TODO write content</div>
</div>
</body>
</html>
Solution 6 - Javascript
Use flex. Much simpler and will work regardless of your div size:
.center-screen {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
text-align: center;
min-height: 100vh;
}
<html>
<head>
</head>
<body>
<div class="center-screen">
I'm in the center
</div>
</body>
</html>
Solution 7 - Javascript
If you have a fixed div just absolute position it at 50% from the top and 50% left and negative margin top and left of half the height and width respectively. Adjust to your needs:
div {
position: absolute;
top: 50%;
left: 50%;
width: 500px;
height: 300px;
margin-left: -250px;
margin-top: -150px;
}
Solution 8 - Javascript
I would do this in CSS:
div.centered {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
then in HTML:
<div class="centered"></div>
Solution 9 - Javascript
try this
<table style="height: 100%; left: 0; position: absolute; text-align: center; width: 100%;">
<tr>
<td>
<div style="text-align: left; display: inline-block;">
Your Html code Here
</div>
</td>
</tr>
</table>
Or this
<div style="height: 100%; left: 0; position: absolute; text-align: center; width: 100%; display: table">
<div style="display: table-row">
<div style="display: table-cell; vertical-align:middle;">
<div style="text-align: left; display: inline-block;">
Your Html code here
</div>
</div>
</div>
</div>
Solution 10 - Javascript
Now you can do this using grid layout with fewer lines of code.
.center-this{
display: grid;
place-items: center;
align-content: center;
}
<div class="center-this">
<div>
Hello
</div>
</div>
Solution 11 - Javascript
Another easy flexible approach to display block at center: using native text alignment with line-height and text-align.
Solution:
.parent {
line-height: 100vh;
text-align: center;
}
.child {
display: inline-block;
vertical-align: middle;
line-height: 100%;
}
And html sample:
<div class="parent">
<div class="child">My center block</div>
</div>
We make div.parent fullscreen, and his single child div.child align as text with display: inline-block.
Advantages:
- flexebility, no absolute values
- support resize
- works fine on mobile
Simple example on JSFiddle: https://jsfiddle.net/k9u6ma8g
Solution 12 - Javascript
Alternative solution that doesn't use position absolute:
I see a lot of position absolute answers. I couldn't use position absolute without breaking something else. So for those that couldn't as well, here is what I did:
https://stackoverflow.com/a/58622840/6546317 (posted in response to another question).
The solution only focuses on vertically centering because my children elements were already horizontally centered but same could be applied if you couldn't horizontally center them in another way.
Solution 13 - Javascript
If there are anyone looking for a solution,
I found this,
Its the best solution i found yet!
div {
width: 100px;
height: 100px;
background-color: red;
position: absolute;
top:0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
}
<http://dabblet.com/gist/2872671>
Hope you enjoy!
Solution 14 - Javascript
try this:
width:360px;
height:360px;
top: 50%; left: 50%;
margin-top: -160px; /* ( ( width / 2 ) * -1 ) */
margin-left: -160px; /* ( ( height / 2 ) * -1 ) */
position:absolute;