Keeping a DIV at bottom-center of its parent DIV - css

Question

My HTML structure is basically this -
<div id="header">
<div class="container">
</div>
</div>
<div id="content">
<div class="container">
</div>
</div>
<div id="footer">
<div class="container">
</div>
</div>
Ignore any elements except <div id="header">
I want to align <div class="container"> inside <div id="header"> at exactly bottom center. I'm using the following CSS code-
#header{ width:1062px; height:326px; background-color:#110000; text-align:center; position:relative; }
#header .container{ width:940px; height:262px; background-color:#220000; margin:0px auto; position:absolute; bottom:0px; }
There are height differences between the parent (#header) and child (#header .container) DIVs. Removing position:absolute; from the child centers it but it sticks to the parent's top instead of bottom. Keeping position:absolute; sticks it at the bottom but aligns it to the left.
How do I align it both center AND bottom at the same time?

Answer 1

I tried all the solution above but it didn't work when you resize the browser window. This solution is mostly to be applied when you don't know the element's width. Or if the width is changed on resize.
After making some research I tried the following and it worked perfectly on all screen sizes.
#somelement {
position: absolute;
left: 50%;
bottom: 0px;
-webkit-transform: translateX(-50%);
transform: translateX(-50%)
}
I shared this for anyone still facing this issue.

Answer 2

try in this way:
#header .container{
width: 940px;
height: 262px;
background-color: #220000;
position: absolute;
bottom: 0 ;
left: 50%;
margin-left: -470px;
}

Answer 3

try this
#header .container {
width: 940px;
height: 262px;
background-color: #220000;
margin: 0px auto;
position: absolute;
bottom: 0px;
left: 61px;
}

Answer 4

use this:
#header{
width:1062px; height:262px; background-color:#110000; text-align:center;
position:relative;text-align: center; vertical-align: bottom;padding-top:64px;
}
#header .container{
width:940px;
height:262px;
background-color:#999000;
margin:0px auto;
bottom:0px;
margin-bottom: 0px;
padding-top: 0px;
}
Here the jsfiddle
UPDATE:
As DenisVuyka said in comment, i should add that the above sample was as answer to this particular question with fixed height for DIV.
If you want that height of DIV don't break up things then for example you should use padding-top:10%; in the #header and height:100% in #header .container CSS.
#header{
width:462px; height:262px; background-color:#110000; text-align:center;
position:relative;text-align: center; vertical-align: bottom;padding-top:10%;
}
#header .container{
width:300px;
height:100%;
background-color:#999000;
margin:0px auto;
bottom:0px;
margin-bottom: 0px;
padding-top: 0px;
}
Here is a demo: http://jsfiddle.net/d6ct6/ .

Answer 5

I was trying to get this to work in my project as well. I've edited this jsfiddle:
http://jsfiddle.net/d6ct6/
<div id="header">
<div class="container">
</div>
</div>
#header {
height:100vh;
background-color:#110000;
position:relative;
}
#header .container{
width:300px;
height:40px;
background-color:#999000;
bottom:0px;
position:absolute;
left:calc((100% - 300px)/2);
}
But I've found this only works when the width of .container is fixed.
If the width of .container is not fixed you would need javascript to find it's width and then change that width in the calc.
When the widths are responsive, use this:
HTML
<div id="header">
<div id="container">
</div>
</div>
CSS
#header {
height:100vh;
background-color:#110000;
position:relative;
}
#container{
width:300px;
height:40px;
background-color:#999000;
bottom:0px;
position:absolute;
}
JS
$(document).ready(function () {
var parentWidth = $('#header').width();
var trapWidth = $('#container').width();
var deadCenter = (parentWidth - trapWidth);
var deadHalf = Number( deadCenter / 2 );
$('#container').css("right", deadHalf);
});

Answer 6

In case you care more about having the inside div aligned in the center and can manually set the vertical alignment.
DEMO Height I used was first div height - second div height.
#header .container{ width:940px; height:262px; background-color:red; margin:0 auto; position:relative; top: 64px; }

Answer 7

I would take advantage of CSS table display properties and do the following:
#header {
width:1062px;
height:326px;
background-color:#110000;
text-align:center;
display: table-cell;
vertical-align: bottom;
}
#header .container {
width:900px;
height:262px;
background-color:#cccccc;
color: white;
display: inline-block;
}
Set the #header block to display: table-cell and set vertical-align: bottom to align the child's bottom edge to the bottom edge of the parent.
The child .container element had display: inline-block and this will allow it to respond the text-align: center property of the parent.
This will work regardless of the width of the child .container.
Demo fiddle: http://jsfiddle.net/audetwebdesign/p9CxE/

Answer 8

This same problem was bedevilling me for an hour or so, until I realised I could add an intermediary div; this separated the vertical alignment issue from the centering.
.dparent {
border: 1px solid red;
width: 300px;
height: 300px;
position: absolute;
}
.dchild {
border: 1px solid blue;
margin-left: auto;
margin-right: auto;
width: 200px;
height: 100px;
bottom: 0px;
position: relative;
}
.dmid {
border: 1px solid green;
width: 100%;
position: absolute;
bottom: 0;
<div class="dparent">
<div class="dmid">
<div class="dchild"></div>
</div>
</div>
Do the vertical alignment first, with an absolute position and the 0 bottom. Then do the centering with margin-left and margin-right set to auto.

Answer 9

You might try this solution for any concerned width:
width:100%;
position:absolute;
bottom: 5px;
left:50%;
margin-left:-50%;
Good luck!