body{background:#000;color:#fff}.box{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:left;color:#2c3e50;min-width:320px;max-width:540px;overflow:hidden;text-overflow:ellipsis;margin:0 auto}.el-collapse-item__header{height:88px;line-height:30px}.el-collapse-item__content,.el-collapse-item__header{background:#000;color:#fff}.box-content{white-space:normal;text-overflow:ellipsis}