cool-admin-vue/cool/modules/base/components/menu/slider/index.scss

.cl-slider-menu {
	height: 100%;
	overflow-y: auto;

	&::-webkit-scrollbar {
		width: 0;
		height: 0;
	}

	.el-menu {
		border-right: 0;
		background-color: $color-main;

		&-item {
			&.is-active {
				background-color: $color-primary;
				color: #fff;
			}
		}

		.el-submenu__title,
		.el-menu-item {
			&:hover {
				background-color: $color-primary;
			}
		}

		.el-submenu {
			&.is-opened {
				background-color: #2b3043;

				.el-menu {
					background-color: #2b3043;
				}
			}
		}

		.el-submenu__title,
		&-item,
		&__title {
			color: #eee;
			letter-spacing: 0.5px;
			height: 50px;
			line-height: 50px;

			.icon-svg {
				font-size: 16px;
				margin: 0 15px 0 5px;
				position: relative;
			}

			span {
				font-size: 12px;
				letter-spacing: 1px;
				display: inline-block;
			}
		}

		&--collapse {
			.el-submenu__title {
				.icon-svg {
					margin-left: 2px;
					font-size: 19px;
				}
			}
		}
	}
}

.el-menu {
	&--vertical {
		.el-submenu {
			&__title {
				display: flex;
				align-items: center;

				.icon-svg {
					font-size: 18px;
					margin-right: 10px;
				}
			}
		}

		.el-menu-item {
			display: flex;
			align-items: center;

			.icon-svg {
				font-size: 18px;
				margin-right: 10px;
			}
		}
	}
}