I'm building a responsive website, and I have a div (named 'wrapper'), that I want to be in the center of the page at all times. I figured out how to center it horizontally, because I have a set width percentage. How would I center this vertically, if I DONT have a set height percentage?
.wrapper{
width: 50%;
height: auto;
margin-left: 25%;
padding: 3%;
}'