Gravity Forms responsive // Source: http://codepad.co/s/710e84

gf-responsive.css

.gform_body ul{
    list-style: none;
    margin: 0;
    padding: 0;
    
    li{
        label{margin: 0px;}	
        margin-bottom: 20px;
        
        input[type=text], input[type=email], textarea  {
                width:75%;
                
                @media (max-width: 685px) {
                    width: 100%;;	  	
                }

            }
        
    }
}