html, body {
    height: 100%;
    margin: 0;
}

.content {
    min-height: 100%;
}

.content-inside {
    /*padding: 10px;*/
    padding-bottom: 100px;
}
.footer {
    height: 100px;
    margin-top: -100px;
    line-height: 100%;
    /*margin-left: 20px;
    margin-right: 20px;*/
}