.sider1 {
    background-image: url("defdefimages6491sider.png");
    width: 45px;
    height: 45px;
    background-repeat: repeat-x;
    background-position: 0px 0px;
}

    .sider1:hover {
        background-repeat: repeat-x;
        background-position: 0px -55px;
    }

.sider2 {
    background-image: url("defdefimages6491sider.png");
    width: 45px;
    height: 45px;
    background-repeat: repeat-x;
    background-position: 0px -110px;
}

    .sider2:hover {
        background-repeat: repeat-x;
        background-position: 0px -165px;
    }

.sider3 {
    background-image: url("defdefimages6491sider.png");
    width: 45px;
    height: 45px;
    background-repeat: repeat-x;
    background-position: 0px -220px;
}

    .sider3:hover {
        background-repeat: repeat-x;
        background-position: 0px -275px;
    }

.sider4 {
    background-image: url("defdefimages6491sider.png");
    width: 45px;
    height: 45px;
    background-repeat: repeat-x;
    background-position: 0px -330px;
}

    .sider4:hover {
        background-repeat: repeat-x;
        background-position: 0px -385px;
    }

.sider5 {
    background-image: url("defdefimages6491sider.png");
    width: 45px;
    height: 45px;
    background-repeat: repeat-x;
    background-position: 0px -440px;
}

    .sider5:hover {
        background-repeat: repeat-x;
        background-position: 0px -495px;
    }
	
.sider6 {
    background-image: url("defdefimages6491sider.png")/*tpa=http://www.xa.gov.cn/ptl/def/def/images/6491/sider.png*/;
    width: 45px;
    height: 45px;
    background-repeat: repeat-x;
    background-position: 0px -550px;
}

    .sider6:hover {
        background-repeat: repeat-x;
        background-position: 0px -605px;
    }