body {
    background-image: linear-gradient(to right, black, white);
    width: 800px;
    margin: 0 auto;
}
header {
    background-color: dimgray;
    height:120px;
}
header h1 {
    padding: 40px;
}
nav {
    background-color: lightslategray;
    text-align: center;
}
nav a {
    text-decoration: none;
    color: black;
    text-transform: uppercase;
    background-color: gray;
    padding: 5px 10px;
    display: inline-block;
    margin: 0 1px;
}
nav a:hover {
    background-color: white;
    color: black;
}
main {
    background-color: white;
    padding: 30px;
    overflow: auto;
}
footer {
    background-color: dimgray;
    padding: 30px;
}
.BB {
    width 6000px;
}
h1 {
    color: black;
    font-family: verdant;
    text-align: center;
}
.active {
    color: white;
}
.KL {
    width: 60px;
    float: left;
    padding: 25px;
}