.wrapper {
    display: grid;
    margin-top: 16px;
    grid-template-columns: 250px 1fr;
}

#phone-controller {
    display: none;
}

#controller {
    padding: 8px;
    /*max-height: 600px;*/
    overflow: scroll;
}

#webgl-wrapper {
    border-radius: 5px;
    overflow: hidden;
    /*max-height: 600px;*/
    margin: 0 8px;
}

.elem {
    min-height: 360px;
    position: relative;
}

#controller::-webkit-scrollbar {
    width: 8px; /* width of the entire scrollbar */
    margin-right: 8px;
}

#controller::-webkit-scrollbar-thumb {
    background-color: rgb(183, 183, 183); /* color of the scroll thumb */
    border-radius: 20px; /* roundness of the scroll thumb */
}

@media screen and (max-width: 600px) {
    .wrapper {
        grid-template-columns: 1fr;
    }
    .elem {
        min-height: 0px;
    }
    #controller {
        max-height: 100px;
    }

    #phone-controller {
        display: block;
    }
}