#content-container {
    background-color: #28313b;
    background-image: linear-gradient(315deg, #28313b 0%, #1A2026 74%);
    bottom: 0;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    z-index: 0;
}

.content-square {
    background: #ddd;
    border-style: solid;
    border-color: #aaa;
    border-width: 0 1px 1px 0;
    position: absolute;
}

.content-wall-x {
    background: #222;
    height: 8px;
    margin-top: -4px;
    position: absolute;
}

.content-wall-y {
    background: #222;
    margin-left: -4px;
    position: absolute;
    width: 8px;
}

.content-robot {
    position: absolute;
    transition: left 0.4s cubic-bezier(0,1,.5,1), top 0.4s cubic-bezier(0,1,.5,1);
}

.content-arrows {
    transition: left 0.4s cubic-bezier(0,1,.5,1), top 0.4s cubic-bezier(0,1,.5,1);
}

.content-arrow {
    color: #aaa;
    cursor: pointer;
    position: absolute;
    text-align: center;
    user-select: none;
}

.content-arrow:hover {
    color: #000;
}