html, body, controls {
    padding: 0 0;
    margin: 0 0;
}
body {
    position: fixed;
    top: 0; left: 0;
    right: 0; bottom: 0;
    z-index: -1;
}

.invis {display: none;}

#main {
    margin: 0 0;
    padding: 30px 35px;
    height: 100%;
}

#main, #main * {
    background-color: black;
    color: #dadada;
    border-color: #a3a3a3;
}

button {
    padding: 8px 10px;
    font-size: 1.2em;
    color: white;
}
#controls .ctrl {
    background-color: #3d3d3d;
    border-radius: 3px 3px;
    margin: 10px 6px;
}
#controls input {
    padding: 6px 7px;
    margin-left: 0!important;
}

#controls button:not(.invis) {display: inline-block;}
#controls input:not(.invis) {display: block;}

#visual-master {
    /*position: fixed;
    left: 0; right: 0;
    height: max-content;*/
    padding: 0 0; margin: 0 0;
}
#visualizer {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: 0 0;
    display: none;
    pointer-events: none;
    opacity: 1;
    transition: opacity .75s ease-in;
}