.telnav {display:block; position:relative; width:100%; 
  -moz-perspective:800px;/*将平面图形转换为具有透视的3D图形*/
  -moz-transform-style:preserve-3d;/*transform-style: flat,所有子元素在 2D 平面呈现 | preserve-3d,保留3D空间*/
  -webkit-perspective:800px;
  -webkit-transform-style:preserve-3d;
  -moz-backface-visibility:;/*定义当元素不面向屏幕时是否可见,如果在旋转元素不希望看到其背面时，该属性很有用*/
  -webkit-backface-visibility:hidden;/*visible背面是可见的,hidden背面是不可见的。*/
  }
.telnav li{display:block;float:left; position:relative;font-size:0.9em;  color:#333;border-bottom:1px solid #DDDDDD;border-left:1px solid #DDDDDD; width:33.33333%;text-align:center;
  -webkit-animation-name:xuanzhuan_1;/*动画名称，需要跟@keyframes定义的名称一致*/
  -webkit-animation-duration: 1s;/*表示动画持续的时间,如果没有设置duration的话，则表示为无穷大*/
  -webkit-animation-timing-function: linear;/*表示动画使用的时间曲线*/
  -webkit-animation-delay: 0;/*表示开始动画之前的延时*/
  -webkit-animation-iteration-count: 1;/*播放1数，infinite;播放无限次数*/
  -webkit-animation-direction: ;/*表示动画的方向*/
  -moz-animation-name:xuanzhuan_1;
  -moz-animation-duration: 1s;
  -moz-animation-timing-function: linear;
  -moz-animation-delay: 0;
  -moz-animation-iteration-count: 1;
  -moz-animation-direction: ;	
}
@-webkit-keyframes xuanzhuan_1{
  0% {-webkit-transform:rotateY(0deg) rotateX(0deg) rotateZ(0deg) translateZ(0px);}
  25% {-webkit-transform:rotateY(90deg) rotateX(0deg) rotateZ(0deg) translateZ(0px);}
  50% {-webkit-transform:rotateY(180deg) rotateX(0deg) rotateZ(0deg) translateZ(0px);}
  75% {-webkit-transform:rotateY(270deg) rotateX(0deg) rotateZ(0deg) translateZ(0px);}
  100% {-webkit-transform:rotateY(360deg) rotateX(0deg) rotateZ(0deg) translateZ(0px);}
  }
@-moz-keyframes xuanzhuan_1{
  0% {-moz-transform:rotateY(0deg) rotateX(0deg) rotateZ(0deg) translateZ(0px);}
  25% {-moz-transform:rotateY(90deg) rotateX(0deg) rotateZ(0deg) translateZ(0px);}
  50% {-moz-transform:rotateY(180deg) rotateX(0deg) rotateZ(0deg) translateZ(0px);}
  75% {-moz-transform:rotateY(270deg) rotateX(0deg) rotateZ(0deg) translateZ(0px);}
  100% {-moz-transform:rotateY(360deg) rotateX(0deg) rotateZ(0deg) translateZ(0px);}
  }
.telnav li span{display:block;float:left;  position:relative; width:100%; text-align:center; padding:6% 0% 10% 0%; }
.telnav .telbtn {display:block;float:left; position:relative;font-size:0.9em; color:#333; width:33.33333%; border-left:0px;}
.icon {display:block;width:50px; height:50px;/*padding:5% 0%; */ margin:15% auto 3%; padding:0%;border-radius:100px; overflow:hidden; }

.icon img {display:block; width:100%; min-height:100%; vertical-align:middle;}