#main-body > .container > div {
    background: #fff;
    padding: 30px 10px;
}
section#main-body {
    display: flex;
    -webkit-box-align: center;
    align-items: center;
    -webkit-box-pack: center;
    justify-content: center;
    min-height: 100vh;
    padding: 50px 0 70px !important;
    background: #007bff;
    background: -webkit-gradient(linear, left top, right top, from(#001d99), to(#0047c6));
    background: linear-gradient(to right, #001d99, #0047c6);
}