Hi ramkiran,

Refer the below css.

<style type="text/css">
    body
    {
        font-family: Arial;
        font-size: 10pt;
    }
    .Item
    {
        height: 150px;
        width: 180px;
        margin: 5px;
    }
    .Item, .Item td, .Item td
    {
        border: 1px solid #ccc;
    }
    .Item .header
    {
        background-color: #F7F7F7 !important;
        color: Black;
        font-size: 10pt;
        line-height: 200%;
    }
    .page_enabled, .page_disabled
    {
        display: inline-block;
        height: 25px;
        min-width: 25px;
        line-height: 25px;
        text-align: center;
        text-decoration: none;
        border: 1px solid #ccc;
    }
    .page_enabled
    {
        background-color: #eee;
        color: #000;
    }
    .page_disabled
    {
        background-color: #6C6C6C;
        color: #fff !important;
    }
</style>