html,body,.container {
    height: 100%;
    background-color: rgb(148, 186, 51);
}
.container {
    display: table;
}
.row
{
    height: 100%;
    display: table-row;
}
.vertical-center
{
    display: table-cell;
    float: none;
    vertical-align: middle;
}
footer {
    position: fixed;
    bottom: 0;
    width: 100%;
}