.b-ext .backToTop {bottom: 40px;color: #000;font: 12px Arial;position: fixed;text-align: center;text-decoration: none;right: 20px;z-index: 2222;-moz-transition: opacity .2s linear;-o-transition: opacity .2s linear;-webkit-transition: opacity .2s linear;transition: opacity .2s linear;}
.b-ext .backToTop.fadein {filter: progid:DXImageTransform.Microsoft.Alpha(enabled=false);opacity: 1;}
.b-ext .backToTop.fadeout {filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);opacity: 0;}