main.css

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

body {
	min-height: 100vh;
	background: #1a313a;
}

.side-bar {
	position: absolute;
	width: 60px;
	height: 100vh;
	background: #fff;
	overflow: hidden;
	transition: 0.5s;
}

.side-bar:hover {
	width: 300px;
}

.side-bar ul {
	position: relative;
	height: 100vh;
}

.side-bar ul li {
	list-style: none;
}

.side-bar ul li:hover {
	background: #f3f3f3;
}

.side-bar ul li a {
	position: relative;
	display: flex;
	white-space: nowrap;
	text-decoration: none;
}

.side-bar ul li a .icon {
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
	min-width: 60px;
	height: 60px;
	font-size: 1.5em;
	color: #333;
}

.side-bar ul li a .text {
	position: relative;
	height: 60px;
	display: flex;
	align-items: center;
	font-size: 1em;
	color: #333;
	text-transform: uppercase;
	letter-spacing: 0.05em;
}

.side-bar ul li.logo {
	margin-bottom: 50px;
}

.side-bar ul li.logo:hover {
	background: #fff;
}

.side-bar ul li.logo .icon {
	font-size: 2em;
}

.side-bar ul li.logo .text {
	font-size: 1.2em;
	font-weight: 500;
}

.side-bar ul .bottom {
	position: absolute;
	bottom: 0;
	width: 100%;
}

.side-bar ul .bottom .imgBx {
	position: relative;
	width: 40px;
	height: 40px;
	border-radius: 50%;
	overflow: hidden;
}

.side-bar ul .bottom .imgBx img {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
}