css实现鼠标移动图片居中放大效果

.big-img img {
width: 262px;
min-height: 192px;
-moz-transform: scale(1);
-ms-transform: scale(1);
-o-transform: scale(1);
-webkit-transition: -webkit-transform .65s;
-moz-transition: -moz-transform .65s;
transition: transform .65s;
background-size: cover;
background-repeat: no-repeat;
background-position: center center;
}

.big-img:hover img {
-webkit-transform: scale(1.3);
-moz-transform: scale(1.3);
-ms-transform: scale(1.3);
-o-transform: scale(1.3);
transform: scale(1.3);
}
<a href="" target="_blank" class="big-img">
<img width="292" height="182" src="1.jpg">
</a>