以前jQueryを利用して光がアニメーションするボタンを作りましたが、今回はCSS3のanimationを使って光のアニメーションを作った、CSSだけで動くキラっと光るボタンです。

デモページ

HTML

<span id="button"><a href="javascript:void(0);">shiny button</a></span>

CSS

#button {
	display: block;
	width: 100%;
	max-width: 180px;
	margin: 0 auto;
}
#button a {
	display: block;
	position: relative;
	z-index: 2;
	overflow: hidden;
	width: 100%;
	border: 1px solid #52d3ff;
	border-radius: 2px;
	background-color: #52d3ff;
	color: #ffffff;
	padding: 12px 0;
	text-align: center;
	text-decoration: none;
	transition: .25s linear;
	-webkit-transition: .25s linear;
	-moz-transition: .25s linear;
}
#button a:hover {
	color: #52d3ff;
	background-color: #ffffff;
}
#button a:before {
	display: block;
	position: absolute;
	z-index: -1;
	left: -30%;
	top: -50%;
	content: "";
	width: 30px;
	height: 100px;
	transform: rotate(30deg);
	-webkit-transform: rotate(30deg);
	-moz-transform: rotate(30deg);
	background-image: linear-gradient(left, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 50%,rgba(255,255,255,0) 100%);
 	background-image: -webkit-gradient(linear, left bottom, right bottom, color-stop(0%,rgba(255,255,255,0)), color-stop(50%,rgba(255,255,255,1)),color-stop(100%,rgba(255,255,255,0)));
	background-image: -moz-linear-gradient(left, rgba(255,255,255,0) 0%, #ffffff rgba(255,255,255,1),rgba(255,255,255,0) 100%);
	animation: shiny 3s infinite linear;
	-webkit-animation: shiny 3s infinite linear;
	-moz-animation: shiny 3s infinite linear;
}
@keyframes shiny {
	0% {
		left: -30%;
	}
	20% {
		left: 120%;
	}
	100% {
		left: 120%;
	}
}
@-webkit-keyframes shiny {
	0% {
		left: -30%;
	}
	20% {
		left: 120%;
	}
	100% {
		left: 120%;
	}
}
@-moz-keyframes shiny {
	0% {
		left: -30%;
	}
	20% {
		left: 120%;
	}
	100% {
		left: 120%;
	}
}

デモページ