在带有悬停和背景的容器中垂直和水平居中调整大小的图像

Posted 2021-02-23

A snippet that will centre an image within a container. The image also has a hover and background element 'on' the image.

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;
}