How to remove margin from GridView cell using CSS in ASP.Net

Hi nedash,

Please use below css code.

CSS

<style type="text/css">
    #DviewM
    {
        width: 100%;
        height: 55px;
        background-color: #989896;
    }
  
    #DviewM1
    {
        width: 100%;
        height: 32px;
        background-color: #fcb906;
    }
        
    table th, table td
    {
        padding: 1px !important;
        border-color: #ccc;
    }
</style>