.topnav{
    background-color:DeepPink;
    overflow:hidden;
}

.topnav a{
    float:left;
    color:black;
    text-align:center;
    padding:16px 24px;
    text-decoration:none;
    display:block;
    
}

.topnav a:hover {
    background-color:LightSeaGreen;
    color:black;
}

.topnav a.active{
    float:left;
    color:black;
}

footer{
    background-color:DeepPink;
    overflow:hidden;
    float:left;
    color:black;
    padding:16px;
}

body{
    background-color:Silver;
}

table, th, td {
    border: 1px solid black;
    border-collapse: collapse;

}

th, td {

padding: 10px;

}

th {

background-color: #FDDF95;

}

colgroup {

width: 250px;

}
}