body {
    background-image: url(/images/back.jpg?v=1);
    background-size: cover;
}
.pentagon {
    background-image: url('data:image/svg+xml,<svg viewBox="0 0 13 13" fill="currentColor" class="text-white">    <path d="M 5 0 L 5 0 L 10 3 L 10, 10 L 5, 13 L 0, 10 L 0, 3" /></svg>');
}
#login-outerbox {
    display: table-cell;
    width: 100vw;
    height: 100vh;
    text-align: left;
    padding-left: 12.5%;
    vertical-align: middle;
}
#login-outerbox > * {
    display: inline-block;
    text-align: left;
}