.container .downBtn {
    position: absolute;
    cursor: pointer;
    top: 9rem;
    left: 24%;
    width: 50%;
    height: 1.1rem;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    animation: .6s linear infinite rotate
}

.container .downNum{
	position: absolute;
	top: 25.6%;
	left: 37%;
	width: 2rem;
    height: 0.4rem;
}