the-glorious-startpage/css/dock-buttons.css

/*Dock buttons*/
.dockButton {
	width: 36px;
	height: 36px;
	position: relative;
	background: var(--base-container);
	border-radius: var(--rounded-radius);
	margin: 2px;
	padding: 5px;
	border: none;
	cursor: pointer;
	transition: transform .2s;
}

.dockButton div {
	background-size: cover;
	width: 36px;
	height: 36px;
	border: none;

	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	margin: auto;
	
	max-width: 100%;
	max-height: 100%;
	overflow: auto;
}

.dockButton:hover {
	background: var(--base-hover-bg);

	-ms-transform: scale(1.25);
	-webkit-transform: scale(1.25);
	transform: scale(1.25); 
}

.dockButton:active {
	background: var(--base-active-bg);

	-ms-transform: scale(1);
	-webkit-transform: scale(1);
	transform: scale(1); 
}

.dockButtonImage {
	background-size: 'cover';
}