html,body{background-color:#f1f1f1;margin:0;height:100%;min-height:100vh}html footer,body footer{z-index:3}*{-webkit-box-sizing:border-box;box-sizing:border-box}#js-container{height:100%;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}#js-container #app{-webkit-box-flex:1;-ms-flex:1;flex:1}