.music-play{
    text-align: center;
	width:100%;
	height:auto;
	display:flex;
	justify-content:center;
	align-items:center;
    flex-direction: column;
    margin:0;
}
#canvas{
    width:90vw;
    height:auto;
}

.bar-wrapper {
    height: 300px;
    position: relative;
}
.bar {
    position: relative;
    bottom: 0;
    width: 5px;
    display: inline-block;
    border: 1px solid red;
    height: 5px;
    border-bottom: 3px solid #fff;
}