.app-main {
    position: relative;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-flex: 1 1 0%;
    -ms-flex: 1 1 0%;
    flex: 1 1 0%;
    padding-left: 0;
    transition: all .3s ease-out;
}