Is there a way to achieve height:auto; for a parent element even when child elements are using float:left; or float:right?
Solution for the Parent Element:
#parent {
width:100px;
height:auto;
padding-bottom:10px;
background:#0F0;
}
Child Element Floating Left:
#child_left {
width:50%;
height:50px;
float:left;
background:#00F;
}
Here is a fiddle demonstrating the issue: http://jsfiddle.net/27EWw/
By default, the height of an element is set to auto. However, if you are dealing with floated children within a parent element without specified dimensions, it may collapse. To prevent this, you can add overflow:auto to the parent element:
#parent {
width:100px;
overflow:auto;
padding-bottom:10px;
background:#0F0;
}
Another option is to use a clearfix technique like this:
#parent:after {
clear:both;
display:table;
content:'';
}
You could also create a separate clearfix class if preferred. Otherwise, adding dimensions directly to the parent element would solve the collapsing issue. Keep in mind that this might not always be ideal for elements with varying child dimensions.
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