.el-header{color:#333;margin:10px 0;line-height:20px}.el-main{background-color:#e9eef3;color:#333;text-align:center;line-height:30px}body>.el-container{margin-bottom:40px}.el-container:nth-child(5) .el-aside,.el-container:nth-child(6) .el-aside{line-height:260px}.el-container:nth-child(7) .el-aside{line-height:320px}