B2子比文章缩略图鼠标滑过图片动画【站长原创】

B2修改方法（把代码里的www.test.com替换成你的域名）

/*B2文章划过动画图片开始*/
 .post-module-thumb:after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 50px;
    height: 50px;
    margin: -25px 0 0 -25px;
    background: url(https://www.test.com/pic/hover_img.png);
    background-repeat: no-repeat;
    background-size: 100% 100%;
    z-index: 3;
    -webkit-transform: scale(2);
    transform: scale(2);
    transition: opacity .75s, -webkit-transform .75s;
    transition: transform .75s, opacity .75s;
    transition: transform .75s, opacity .75s, -webkit-transform .75s;
    opacity: 0;
    pointer-events: none;
}
.post-module-thumb:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0);
    transition: background .35s;
    border-radius: 8px;
    z-index: 2;
    max-width: 765px;
    margin: 0 auto;
    pointer-events: none;
}
 .post-module-thumb:hover:before {
                background: rgba(0,0,0,.5)
            }
        .post-module-thumb:hover:after {
                -webkit-transform: scale(1);
                transform: scale(1);
                opacity: 1
            }
             /*B2文章划过动画图片结束*/