.pagen-item {
    display: inline-block;
    padding: 0 5px;
    background: #c2c2c2;
    border-radius: 100%;
    width: 25px;
    height: 25px;
    margin: 0 4px;
    line-height: 25px;
    text-align: center;
}
b.pagen-item {

    background: #efefef;
}