.mg-scrollTop{ 
    display: block;
    text-decoration: none;
    width: 50px;
    line-height: 48px;
    text-align: center;
    font-size: 20px;
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    border-radius: 50%;
    border: 1.5px solid #000;
    color: #000;
    background: transparent;
    opacity: 0.3;
    -webkit-transition: all 0.2s ease;
    -moz-transition: all 0.2s ease;
    -o-transition: all 0.2s ease;
    -ms-transition: all 0.2s ease;
    transition: all 0.2s ease;
}
.mg-scrollTop:hover {
	opacity: 1;
	border-color: #0b7dbe;
	background: #0b7dbe;
	color: #fff;
	-webkit-transition: all 0.2s ease;
    -moz-transition: all 0.2s ease;
    -o-transition: all 0.2s ease;
    -ms-transition: all 0.2s ease;
    transition: all 0.2s ease;
}