css absolute center horizontal
.parent{ position: relative;}.child{ position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);}
Source: medium.com
position absolute horizontally center
/*if you want to align center on left attribute. The same thing is for top alignment, you could use margin-top: (width/2 of your div), the concept is the same of left attribute. It's important to set header element to position:relative. try this: */ #logo { background:red; height:50px; position:absolute; width:50px; left:50%; margin-left:-25px; } /*If you would like to not use calculations you can do this:*/ #logo { background:red; width:50px; height:50px; position:absolute; left: 0; right: 0; margin: 0 auto; }
center absolute element
.child { position: absolute; top: 50%; /* position the top edge of the element at the middle of the parent */ left: 50%; /* position the left edge of the element at the middle of the parent */ transform: translate(-50%, -50%); /* This is a shorthand of translateX(-50%) and translateY(-50%) */ }
Source: stackoverflow.com