.contact-list {
    width: 900px;
    height: auto;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}
.contact-list li {
    width: 862px;
    height: 42px;
    padding-left: 38px;
    color: #6e6e6e;
    font-size: 14px;
    line-height: 42px;
    background-repeat: no-repeat;
    background-position: 0 center;
    position: relative;
}
.contact-list li.contact-item1 {
    background-image: url(../img/about/i1.png);
    background-size: 12px 15px;
}
.contact-list li.contact-item2 {
    background-image: url(../img/about/i2.png);
    background-size: 15px 15px;
}
.contact-list li.contact-item3 {
    background-image: url(../img/about/i3.png);
    background-size: 15px 15px;
}
.contact-list li.contact-item4 {
    background-image: url(../img/about/i4.png);
    background-size: 15px 15px;
}