vue-router-tab/src/assets/scss/demo.scss

html, body {
	width: 100%;
	height: 100%;
}

body {
	margin: 0;
	font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
    color: $text;
}

[class^="rt-icon-"],
[class*=" rt-icon-"] {
  font-family: "rtfont" !important;
  font-size: 16px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a:link {
	transition: color .3s ease-in-out;
}


.app-ct {
	display: flex;
	flex-direction: column;
	width: 100%;
	height: 100%;

	.app-hd {
		flex: none;
		display: flex;
		position: relative;
		z-index: 99;
		height: 50px;
		box-shadow: 0 0 8px rgba(0,0,0,.2);
		align-items: center;

		.site-logo {
			$s: 1.3rem;
			margin: 0 .5rem 0 1.5rem;
			width: $s;
			height: $s;
		}

		.site-title {
			margin: 0;
			font-weight: 400;
			font-size: 1.3rem;
			line-height: 1;

			a {
				font-weight: 600;
				text-decoration: none;
				color: $text;

				&:hover {
					color: $color;
				}
			}
		}
	}

	.app-bd {
		display: flex;
		flex: auto;
	}
}

.app-sd {
	flex: 0 0 200px;
	padding-top: 2rem;
	border-right: 1px solid #eaecef;

	
	> .menu-group {
		margin-bottom: 1rem;
	}

	.menu-group {

		.menu-title {
			padding: 0 1.25rem;
			margin-top: 0;
			margin-bottom: .5rem;
			font-size: 1.1em;
			font-weight: 700;
		}

		.menu-list {
			margin: 0;
			padding: 0;
		}
	
		.menu-item {
			padding: .35rem 1rem .35rem 1.25rem;
			list-style: none;
			font-size: 15px;

			> a {
				color: #2c3e50;
				text-decoration: none;
				cursor: pointer;
		
				&.router-link-active,
				&:hover {
					color: $color;
				}
		
				&.router-link-active {
					font-weight: 700;
				}
			}

			.menu-group .router-link-active {
					font-weight: 400;
			}
		}
	}
}

.app-main {
	flex: auto;
	overflow: hidden;
}

.app-page {
  padding: 15px;
  font-size: 14px;
	line-height: 1.5;
}