body { 
    margin: 0; 
    overflow: hidden; 
    background-color: rgba(25,0,25,1.0);
    font-family: monospace;
}
#shader_cont {
    margin-left: 5%;
    width: 90%;
    height: 800px;
    position: relative;
}
#shader_cont canvas {
    display: block;
    width: 100%;
    height: 100%;
}
h1 { 
    text-align: center;
    color: rgba(200,175,0,1); 
}
.slidecontainer {
    width: 100%;
    text-align: center;
}
.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 40%;
    height: 7px;
    background: rgba(90,80,30,1);
    opacity: 50%;
    -webkit-transition: .4s;
    transition: opacity .4s;
}
.slider:hover {
    opacity: 100%;
}
.slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: rgba(200,175,0,1);
    cursor: pointer;
}