CSS 中心可调整图像垂直和水平在一个容器中的悬停和背景

Posted 2021-05-23

Markup:

<div class="cell-wrapper">
    <div class="thumb-wrapper">
        <div class="thumb selectable multi">
            <img src="http://lorempixel.com/60/143"></img>
        </div>
    </div>
</div>

CSS:

body {
	background: #FAFAFA;
}

.cell-wrapper {
	display: table;
}

/* Cell */
.thumb-wrapper {
	display: table-cell;
	text-align: center;
	vertical-align: middle;
    
    background: #EEEEEE;
	width: 139px;
    height: 182px;
}

.thumb {
	display: inline-block;
    position: relative;
}

img {
	position: relative;
	z-index: 1;
	border: 1px solid;
	display: block;
}

/*Background*/
.thumb:after {
	content: '';
    width: 100%;
    height: 100%;
    background: #FFF;
    display:block;
    position: absolute;
    top: 0;
    left: 0;
	-webkit-box-shadow:2px 2px 2px 0px #898989;
    -moz-box-shadow:2px 2px 2px 0px #898989;
    box-shadow:2px 2px 2px 0px #898989;
}

/* Offset background for paging effect */
.thumb.multi:after {
    content: '';
	margin-left: 2px;
    margin-top: 2px;
}

/* Hover */
.thumb.selectable:before {
	content: "";
    opacity: 0;
    width: 100%;
    height: 100%;
    background: black;
    display:block;
    position: absolute;
    cursor: pointer;
    z-index: 2;
}

.thumb.selectable:hover:before {
	opacity: 0.2;
}