.line-random {
    position: fixed;
    z-index: -1;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.line-random .line-11 {
    position: absolute;
    height: 2px;
    width: 0%;
    background-color: #c79f5b;
    overflow: hidden;
    opacity: 0;
}