.float{
	position:fixed;
	width:80px;
	height:80px;
	bottom:40px;
	left:40px;
	background-color:#;
	color:#;
  z-index:100;
}

.my-float{
	margin-top:500px;
}

.bounce {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%,
    25%,
    50%,
    75%,
    100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-12px);
    }
}