body{ 
    font-family:'Open Sans',sans-serif; 
    margin: 0;
}
#popup_this {
	top: 150%;
	left: 50%;
	text-align:center;
	margin-top: 15px;
	margin-left: -100px;
	background: #fff;
	padding: 30px;
	position: fixed;
}
.b-close {
	color: #fff;
	background: #ff0000;
	padding: 5px 10px;
	position: absolute;
	right: 0;
	top: 0;
	cursor: pointer;
}