html.BlogDetail{background:rgba(0,0,0,0)}html.BlogDetail,html.BlogDetail main{position:relative}html.BlogDetail main:before{content:"";position:absolute;top:0;left:0;width:100%;height:126px;background-color:rgba(248,246,254,.95);z-index:-1}@media(max-width:767px){html.BlogDetail main:before{height:72px}}