Cascading Style Sheets（CSS）を使用してアイコンを実装します。

ご自由にご利用ください。

Previews

Examples html

<!-- icons -->

<div class="icons">

	<span></span>

</div>

<!-- /icons -->

Examples css

/* - icons - */

.icons {
	position: relative;
	width: 25px;
	height: 25px;
	margin: 0px 0px 0px 0px;
	padding: 0px 0px 0px 0px;
	background-color: rgba(0, 0, 0, 0.0);
	cursor: pointer;
}

.icons span {
	display: block;
	position: absolute;
	bottom: 0px;
	left: 0px;
	width: 25px;
	height: 11px;
	margin: 0px 0px 0px 0px;
	padding: 0px 0px 0px 0px;
	background-color: rgba(0, 0, 0, 0.0);
	border-top: 2px solid rgba(0, 0, 0, 1.0);
	border-right: 2px solid rgba(0, 0, 0, 1.0);
	border-bottom: 2px solid transparent;
	border-left: 2px solid rgba(0, 0, 0, 1.0);
	border-radius: 8px 8px 0px 0px;
	transition: all .5s;
}

.icons span::before {
	content: "";
	display: block;
	position: absolute;
	bottom: 8px;
	left: 3px;
	width: 15px;
	height: 15px;
	margin: 0px 0px 0px 0px;
	padding: 0px 0px 0px 0px;
	background-color: rgba(0, 0, 0, 0.0);
	border: 2px solid rgba(0, 0, 0, 1.0);
	border-radius: 50%;
	transition: all .5s;
}

.icons:hover span {
	border-top: 2px solid rgba(192, 192, 192, 1.0);
	border-right: 2px solid rgba(192, 192, 192, 1.0);
	border-left: 2px solid rgba(192, 192, 192, 1.0);
}

.icons:active span {
	border-top: 2px solid rgba(0, 0, 0, 1.0);
	border-right: 2px solid rgba(0, 0, 0, 1.0);
	border-left: 2px solid rgba(0, 0, 0, 1.0);
}

.icons:hover span::before {
	border: 2px solid rgba(192, 192, 192, 1.0);
}

.icons:active span::before {
	border: 2px solid rgba(0, 0, 0, 1.0);
}

/* - /icons - */