*{
    text-align: center;
    font-family: Helvetica, sans-serif;
}

header, nav, footer{
    color: white;
    padding: 2px;
}

header, footer{
    background-color: darkgreen;
}

nav{
    background-color: forestgreen;
}

section{
    background-color: lightgreen;
    width: 33.3%;
    height: 550px;
    padding-top: 10px;
    overflow: auto;
    float: left;
}

footer{
    clear: both;
}

h2{
    width: 33%;
    display: inline-block;
}

table, td, th{
    border-style: solid;
    border-width: 1px;
    border-color: darkgreen;
}

table{
    width: 90%;
    border-collapse: collapse
}

#middle img{
    width: 95%;
    border-radius: 8px;
}

#left tr:hover{
    background-color: forestgreen;
}