.bi {
	position: relative;
}

.b {
	position: absolute;
	bottom: 20px;
	left: 65%;
}

@media only screen and (max-width:576px) {
	.b {
		position: absolute;
		left: 0;
		top:0;
		bottom:0;
		right:0;
		margin: auto;
	}
}