.home-page-right {
    width: 450px;
    float: right;
}

.home-page-left {
    width: 650px;
    float: left;
}

.ins-nav {
    width: 400px;
    overflow: hidden;
    margin-top: 15px;
}

.ins-nav li i.icon5 {
    background: url(../images/a5.png) center no-repeat;
}

.ins-nav li i.icon6 {
    background: url(../images/a6.png) center no-repeat;
}


.ins-nav li:hover i.icon5 {
    background: url(../images/a55.png) center no-repeat;
}

.ins-nav li:hover i.icon6 {
    background: url(../images/a66.png) center no-repeat;
}