html,
svg {
    width: 100%;
    height: 100%;
    z-index: 0;
}

svg {
    position: fixed;
}

body {
    margin: 0;
background-color: #0a0a0a;
background-image: url("data:image/svg+xml,%3Csvg width='42' height='44' viewBox='0 0 42 44' xmlns='http://www.w3.org/2000/svg'%3E%3Cg id='Page-1' fill='none' fill-rule='evenodd'%3E%3Cg id='brick-wall' fill='%23141414' fill-opacity='0.11'%3E%3Cpath d='M0 0h42v44H0V0zm1 1h40v20H1V1zM0 23h20v20H0V23zm22 0h20v20H22V23z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    width: 100%;
    font-family: Verdana, Geneva, sans-serif;
    font-size: 13px;
    height: 100%;
}

.background, .c, .d {
    z-index: -3;
}