CSS - Centering a page - then making the page 100% height

Question

I\'m trying to center a page and then make it 100% in height. I have a div called \"content\" as the parent element of all elements in the HTML page. What do I need

Answer 1

body
{
    background-color: #000;
    text-align: center; 
    margin-top: 0px;
    margin-left: auto;
    margin-right: auto; 
} 

#content
{
    text-align: left;
    background-color: #fff;
    margin-left: auto;
    margin-right: auto;
    margin-top: 0px;
    width: 90%;
    height: 100%;
    padding: 0px 5px 5px 5px;
}

Try this. This will work. Remove the html,body selector, you don't need that.