*{margin:0;padding:0}
html{background-color:black;}
body{width:750px;height:750px;margin:auto;background-color:pink;}
header{width:750px;height:250px;background-color:yellow;}
nav{width;750px;height:50px;background-color:blue;}
main{width:750px;height:400px;background-color:green;}
footer{width:750px;height:50 px;background-color:orange;}
Welcome to my Website!