<style type="text/css">

        html {

            height: 100%;

        }

        body {

            height: 100%;

            margin: 0;

            padding: 0;

        }

        .container, .jumbotron {

            min-height: 88%;

        }

        .footer {

            position: absolute;

            width: 100%;

            height: 50px;

            z-index: 10;

            text-align: center;

        }

    </style>