body {
    background-color: LightSlateGray;
    margin: auto;
    padding: 0;
}

h1 {
    text-align: center;
    clear: both;
}

h3 {
    text-align: left;
}

.maincontent {
    width: 100%;
    position: relative;
}

.leftside {
    clear: left;
    float: left;
    width: 50%;
    position: relative;
    padding: 10px;
    text-align: left;
}

.rightside {
    clear: right;
    float: right;
    width: 50%;
    position: relative;
    padding: 10px;
    text-align: left;
}