.file-tree-main{height:100%}.file-tree-main .file-tree{width:240px;background:#f5f8fd;border-right:1px solid #4f78e0}.file-tree-main .file-tree .el-menu{height:100%;overflow:auto;background:#f5f8fd;border-right:none}.file-tree-main .file-tree .el-menu .el-submenu__title{height:40px;line-height:40px}