CZO_Boss/src/layout/components/Sidebar/Logo.vue

<template>
	<div class="sidebar-logo-container collapse">
		<transition name="sidebarLogoFade">
			<router-link v-if="enlarge" key="collapse" class="sidebar-logo-link" to="/">
				<img v-if="logo" :src="logo" class="sidebar-logo" />
			</router-link>
		</transition>
	</div>
</template>

<script>
import logoImg from '@/assets/logo/logo.png'

export default {
	name: 'SidebarLogo',
	computed: {
		enlarge() {
			return this.$store.state.app.enlarge
		}
	},
	data() {
		return {
			logo: logoImg
		}
	}
}
</script>

<style lang="scss" scoped>
.sidebarLogoFade-enter-active {
	transition: opacity 1.5s;
}

.sidebarLogoFade-enter,
.sidebarLogoFade-leave-to {
	opacity: 0;
}

.sidebar-logo-container {
	position: relative;
	width: 100%;
	height: 50px;
	line-height: 50px;
	background: #2b2f3a;
	text-align: center;
	overflow: hidden;

	& .sidebar-logo-link {
		height: 100%;
		width: 100%;

		& .sidebar-logo {
			width: 32px;
			height: 32px;
			vertical-align: middle;
			margin-right: 12px;
		}

		& .sidebar-title {
			display: inline-block;
			margin: 0;
			color: #fff;
			font-weight: 600;
			line-height: 50px;
			font-size: 14px;
			font-family: Avenir, Helvetica Neue, Arial, Helvetica, sans-serif;
			vertical-align: middle;
		}
	}

	&.collapse {
		.sidebar-logo {
			margin-right: 0px;
		}
	}
}
</style>