#html-container {
    width: 750px;
    border: 3px solid #B26115;
    padding: 5px;
    float: left;
    background-color: #272A3A;
    color: #d8dadb;
}

#aframe-container {
    float: left;
    border: 3px solid black;
}

.rs-base {
    position: absolute;
    right: 0;
    left: unset;
    top: 0;
}