#iconDiv1 { display: none; }
.oc_bg { background: url(../images/onlineContact_bgs.png) no-repeat }
.btn { display: inline-block; text-decoration: none; cursor: pointer }
#big_C { background:url(../images/online.png) no-repeat; position: fixed; _position: absolute; width:165px; height:517px; right: 0px; top:125px; z-index: 9999 }
#big_C .btn1 { position: absolute; width: 19px; height: 19px; top:110px; right: 0px; background-position: -176px -83px }
#big_C .btn2 { position: absolute; width:119px; height: 119px; top:187px; left:24px; background: url(../images/web_cord.jpg) no-repeat  }
#big_C .btn3 { position: absolute; width:149px; height: 42px; top: 358px; left: 10px; background:url(../images/qq.png) no-repeat 0 0; }
#big_C .btn3:hover { background-position: 0px -42px; -webkit-transition: all 0.3s ease; -moz-transition: all 0.3s ease; }
#big_C .btn4 { position: absolute; width:149px; height: 42px; top: 410px; left: 10px; background:url(../images/qq.png) no-repeat 0 0;}
#big_C .btn4:hover { background-position: 0px -42px; -webkit-transition: all 0.3s ease; -moz-transition: all 0.3s ease;}

#small_C { position: fixed; _position: absolute; width: 28px; height: 91px; right: 1px; top: 300px; background-position: -250px -174px }
#small_C .btn1 { display: none; position: absolute; width: 28px; height: 28px; left: 0px; bottom: -28px; background-position: -207px -108px }
#small_C .btn1:hover { background-position: -175px -108px }
#small_C .stb { position: absolute; width: 28px; height: 91px; right: 1px; top: 0px }
#big_C #wx { display: none; width: 150px; height: 150px; position: absolute; top: 220px; left: -150px; }