.tzCheckBox {
    background: url('../Images/background.png') no-repeat right bottom;
    display: inline-block;
    min-width: 60px;
    height: 33px;
    white-space: nowrap;
    position: relative;
    cursor: pointer;
    margin-left: 14px;
}

    .tzCheckBox.checked {
        background-position: top left;
        margin: 0 24px 0 0;
    }

    .tzCheckBox .tzCBContent {
        color: white;
        line-height: 31px;
        padding-right: 35px;
        min-width: 60px;
        text-align: right;
    }

    .tzCheckBox.checked .tzCBContent {
        text-align: left;
        padding: 0 0 0 38px;
    }

.tzCBPart {
    background: url('../Images/background.png') no-repeat left bottom;
    width: 14px;
    position: absolute;
    top: 0;
    left: -14px;
    height: 33px;
    overflow: hidden;
}

.tzCheckBox.checked .tzCBPart {
    background-position: top right;
    left: auto;
    right: -14px;
}