#app,#Backgroud,body,html{height:100%}#Backgroud{background-image:url(../img/twoCodeBG.7f6f215d.png);width:100%;background-repeat:no-repeat;background-size:100% 100%;text-align:center}#Backgroud p{padding-top:60%;font-size:20px;color:#fff}