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CSS で背景画像を暗くする + マウスオーバーで明るくする

Posted at

まずは背景画像をつける

スクリーンショット 2016-10-31 15.28.34.png

htmlコード

<a href="#">
	<div class="menu">
		<div class="box">
			ここに文章があったり。
		</div>
	</div>
</a>

まずはCSSで背景を暗くする

CSSコード

.menu {
	height: 100px;
	background: url(fruits.jpg) center no-repeat;
	background-size: cover;	
	
	position: relative;
	height:100%;
}

.box {
	position: absolute;
	width: 100%;
	top: 45%;

	text-align: center;
  	color: #FFF;
}

背景画像を暗くする

スクリーンショット 2016-10-31 15.31.43.png

背景を置いた要素にCSSで暗くした要素を追加するイメージ

.menu::before{
	background-color: rgba(0,0,0,0.3);
	position: absolute;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0;
	content: ' ';
}

マウスオーバしたら明るくする

スクリーンショット 2016-10-31 15.37.56.png

挿入したCSSを明るくするだけ

a:hover .menu::before{
	background-color: rgba(0,0,0,0);
}
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