html {
    height: 100%;
    text-align: center!important;
}

body {
    height: 100%;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 40px;
    /* background-color: #f5f5f5; */
    text-align: center!important;
}