.header
{
    background-color:red;
    margin:auto;
    width:100%;
    border:3px solid black;
}
.horizontalnavigation
{
    
    
    background-color:red;
    float:top;
    border:1px solid;
}
.footer
{
    color:orange;
    background-color:black;
    float:bottom;
    border:2px solid;
}
.leftmenu
{
    margin:auto;
    position:absolute;
    left:0px;
    background-color:#d3171e;
    height:550px;
    width:15%;
    border:3px solid black;
}
.content
{
    margin:auto;
    width:70%;
    height:550px;
    background-color:white;
    border:3px solid black;
    background-image: url("BG.jpg");
}
.rightmenu
{
    position:absolute;
    right:0px;
    margin:auto;
    background-color:#d3171e;
    height:550px;
    width:15%;
    border:3px solid black;
}
.thumbnail
{
    margin:auto;
    width:250px;
    height:250px;
}
body {background-color: coral;}