.content_book{min-height:28px;height:28px;padding:0 5px}#app2 .v-expansion-panel{background:rgba(0,0,0,.8)!important}#app2 .v-card{background:transparent!important}#app2{background-attachment:fixed!important;background:-webkit-gradient(linear,left top,left bottom,color-stop(1%,hsla(0,0%,100%,0)),color-stop(99%,rgba(0,0,0,.7))),url(/static/rm2.jpeg) no-repeat center -200px!important;background:linear-gradient(hsla(0,0%,100%,0) 1%,rgba(0,0,0,.7) 99%),url(/static/rm2.jpeg) no-repeat center -200px!important;background-repeat:no-repeat!important;background-size:cover!important}