body {
    overflow: hidden;
}
.container {
    border: 0px solid pink;
    position: absolute;
    top: 90%;
    left: 50%;
    transform: translate( -50%, -50% );
    display: flex;
}

button {
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    font-size: 15px;
    background:none;
    border: none;
    outline: none;
    color: rgba(255, 255, 255, 0.8);
}

button:hover{
    animation: squish 0.5s;
}
@keyframes squish {
    0%   { transform: scaleY( 1.0 ) }
    70%  { transform: scaleY( 1.5 ) }
    90%  { transform: scaleY( 0.8 ) }
    100% { transform: scaleY( 1.0 ) }
}

#canvas1 {
    position: absolute;
    background: rgba(0, 0, 0, 1);
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    touch-action: pan-y;
    scroll-behavior: none;
    z-index: -1;
}