.shfw2_1_2strengthMain{height:;overflow:hidden;}
.shfw2_1_2strengthMain li{width:1200px;height:465px;overflow:hidden;background:#000;position:relative;}
.shfw2_1_2strengthMain li img{width:1200px;height:465px;transition:all .5s;opacity:1;filter:alpha(opacity=40);}
.shfw2_1_2strengthMain li:hover img{transform: scale(1, 1);}
.shfw2_1_2strengthMain li .font::before,.shfw2_1_2strengthMain li .font::after{position:absolute;content:'';opacity:0;transition:all 0.5s;}
.shfw2_1_2strengthMain li .font::before{top:25px;right:15px;bottom:25px;left:15px;border-top:1px solid #fff;border-bottom:1px solid #fff;transform:scale(0,1);-webkit-transform-origin:0 0;transform-origin:0 0}
.shfw2_1_2strengthMain li .font::after{top:15px;right:25px;bottom:15px;left:25px;border-right:1px solid #fff;border-left:1px solid #fff;transform:scale(1,0);transform-origin:100% 0;}
.shfw2_1_2strengthMain li:hover .font::before,.shfw2_1_2strengthMain li:hover .font::after{opacity:1;transform:scale(1);transition: all 0.5s;}