body {
    background-repeat: no-repeat;
    background: #43C6AC;
    /* fallback for old browsers */
    background: -webkit-linear-gradient(to top, #191654, #43C6AC);
    /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(to top, #191654, #43C6AC);
    /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
}