#iconDiv1 {
    display: none;
}
.oc_bg {
	background-image:url(../images/onlineContact_bg.png);
	background-position:0 0;
	background-repeat:no-repeat;
}
.btn {
    cursor: pointer;
    display: inline-block;
    text-decoration: none;
}
#big_C {
    height: 280px;
    position: fixed;
    right: 0;
    top: 200px;
    width: 120px;
}
#big_C .btn1 {
    background-position: -197px -87px;
    height: 19px;
    position: absolute;
    right: 0;
    top: 70px;
    width: 19px;
}
#big_C .btn6 {
    background-position: -159px -87px;
    display: none;
    height: 85px;
    left: -25px;
    position: absolute;
    top: 140px;
    width: 29px;
}
#big_C .btn6:hover {
    background-position: -125px -87px;
}
#small_C {
    background-position: -270px -177px;
    height: 91px;
    position: fixed;
    right: 1px;
    top: 300px;
    width: 28px;
}
#small_C .btn1 {
    background-position: -227px -111px;
    bottom: -28px;
    display: none;
    height: 28px;
    left: 0;
    position: absolute;
    width: 28px;
}
#small_C .btn1:hover {
    background-position: -195px -111px;
}
#small_C .stb {
    height: 91px;
    position: absolute;
    right: 1px;
    top: 0;
    width: 28px;
}
#big_C #wx {
    display: none;
    height: 150px;
    left: -150px;
    position: absolute;
    top: 220px;
    width: 150px;
}