.header-reading-progress{height:3px;position:fixed;top:0;left:0;width:100%;z-index:2;transition:opacity .3s;-moz-transition:opacity .3s;-o-transition:opacity .3s;-webkit-transition:opacity .3s}.header-reading-progress>div{height:100%;width:0;background-color:rgba(66,188,221,.5);transition:width .3s;-moz-transition:width .3s;-o-transition:width .3s;-webkit-transition:width .3s}.header-reading-progress.header-reading-progress--scrolled{-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";filter:alpha(opacity=0);-moz-opacity:0;-khtml-opacity:0;opacity:0}