Center Align on a Absolutely Positioned Div

Question

div#thing {
  position: absolute;
  top: 0px;
  z-index: 2;
  margin: 0 auto;
}


   
text text text with no fixed size, variable fon         


        
      

Answer 1

I know I'm late to the party, but I thought I would provide an answer here for people who need to horizontally position an absolute item, when you don't know its exact width.

Try this:

// Horizontal example.
div#thing {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

The same technique can also be applied, for when you might need vertical alignment, simply by adjusting the properties like so:

// Vertical example.
div#thing {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}