#bktp {
	width: 25px;
	height: 50px;
	position: fixed;
	left: 50%;
	margin-left: 600px;
	bottom: 30px;
        background-color: space;
	line-height: 50px;
	text-align: center;
	border-radius: 50%;
}
        #sideBar a:hover {
        text-decoration: none;
}
	#bktp:hover {
	background-color: snow;
}