CSS - Bar Graph Icon

Code example for drawing a simple bar graph icon using HTML and CSS.

The HTML code sets the class name "bar-graph-icon" for the <div> tag which will make up the bar graph icon element.
It sets <div> tags for the frame and 3 bar graph bars.

<div class="bar-graph-icon">
	<div></div><div></div><div></div><div></div>
</div>

The CSS custom properties:
"--w" sets the base size.
"--color" sets the base color.

/* Bar Graph Icon */
.bar-graph-icon {
	--w: 300px; /* Base Size */
	--color: #4169e1; /* Base Color */
	position: relative;
	width: var(--w);
	height: var(--w);
}

/* Frame */
.bar-graph-icon div:nth-child(1) {
	position: absolute;
	top: 5%;
	left: 5%;
	width: 90%;
	height: 90%;
	border: solid calc(var(--w) * 0.08) var(--color);
	border-top: 0;
	border-right: 0;
	box-sizing: border-box;

}

/* Bar A */
.bar-graph-icon div:nth-child(2) {
	position: absolute;
	bottom: 20%;
	left: 20%;
	width: 20%;
	height: 60%;
	background: var(--color);
	transform-origin: center bottom;
}

/* Bar B */
.bar-graph-icon div:nth-child(3) {
	position: absolute;
	bottom: 20%;
	left: 45%;
	width: 20%;
	height: 40%;
	background: var(--color);
	transform-origin: center top;
}

/* Bar C */
.bar-graph-icon div:nth-child(4) {
	position: absolute;
	bottom: 20%;
	left: 70%;
	width: 20%;
	height: 70%;
	background: var(--color);
}