* {
margin:0;
padding:0;
}

body {
text-align:center;
}

#container {
width:500px;
margin:0 auto;
border:2px solid yellow;
color:yellow;
}

#header {
border:2px solid yellow;
height:170px;
}

#content {
border:2px solid yellow;
}

#footer {
border-top:3px solid yellow;
margin-top:20px;
padding:5px;
}

a {
color:yellow;
}