.ch-item{width:100%;height:100%;border-radius:50%;position:relative;box-shadow:0 1px 2px rgba(0,0,0,0.1);cursor:default;}
.ch-info-wrap,
.ch-info{position:absolute;width:180px;height:180px;border-radius:50%;}
.ch-info-wrap{top:20px;left:20px;background:#f9f9f9 url(../images/bg.jpg);box-shadow:0 0 0 20px rgba(255,255,255,0.2),
inset 0 0 3px rgba(115,114, 23, 0.8);}
.ch-info > div{display:block;position:absolute;width:100%;height:100%;border-radius:50%;background-position:center center;-webkit-backface-visibility:hidden;}
.ch-info .ch-info-front{-webkit-transition:all 0.6s ease-in-out;-moz-transition:all 0.6s ease-in-out;-o-transition:all 0.6s ease-in-out;-ms-transition:all 0.6s ease-in-out;transition:all 0.6s ease-in-out;}
.ch-info .ch-info-back{opacity:0;background:#161c2c;pointer-events:none;-webkit-transform:scale(1.5);-moz-transform:scale(1.5);-o-transform:scale(1.5);-ms-transform:scale(1.5);transform:scale(1.5);-webkit-transition:all 0.4s ease-in-out 0.2s;-moz-transition:all 0.4s ease-in-out 0.2s;-o-transition:all 0.4s ease-in-out 0.2s;-ms-transition:all 0.4s ease-in-out 0.2s;transition:all 0.4s ease-in-out 0.2s;}
.ch-img-1{background-image:url(../images/seamless-pipes.jpg);}
.ch-img-2{background-image:url(../images/welded-pipes.jpg);}
.ch-img-3{background-image:url(../images/carbon-pipes.jpg);}
.ch-img-4{background-image:url(../images/api-pipes.jpg);}
.ch-info h3{color:#fff;text-transform:uppercase;letter-spacing:2px;font-size:18px;margin:0 15px;padding:40px 0 0 0;height:80px;font-family:'Open Sans', Arial, sans-serif;text-shadow:0 0 1px #fff,
0 1px 2px rgba(0,0,0,0.3);}
.ch-info p{color:#fff;padding:10px 5px 0;font-style:italic;margin:0 30px;font-size:12px;border-top:1px solid rgba(255,255,255,0.5);}
.ch-info p a{display:block;color:#fff;font-style:normal;font-weight:700;text-transform:uppercase;font-size:9px;letter-spacing:1px;padding-top:4px;font-family:'Open Sans', Arial, sans-serif;}
.ch-info p a:hover{color:#fff;}
.ch-item:hover .ch-info-front{-webkit-transform:scale(0);-moz-transform:scale(0);-o-transform:scale(0);-ms-transform:scale(0);transform:scale(0);opacity:0;}
.ch-item:hover .ch-info-back{-webkit-transform:scale(1);-moz-transform:scale(1);-o-transform:scale(1);-ms-transform:scale(1);transform:scale(1);opacity:1;pointer-events:auto;}