Buttons with gradient and rounded corners..

Hi there
so I have the code below in my quick css and it’s changed the buttons beautifully with the exception of the submit buttons, specifically the form buttons and woocommerce buttons, can you give me the beginning code for that? Thanks :)
body div .avia-button
{
border:1px solid #7eb9d0; -webkit-border-radius: 3px; -moz-border-radius: 3px;border-radius: 3px;font-size:12px;font-family:arial, helvetica, sans-serif; padding: 10px 10px 10px 10px; text-decoration:none; display:inline-block;text-shadow: -1px -1px 0 rgba(0,0,0,0.3);font-weight:bold; color: #FFFFFF;
background-color: #a7cfdf; background-image: -webkit-gradient(linear, left top, left bottom, from(#a7cfdf), to(#23538a));
background-image: -webkit-linear-gradient(top, #a7cfdf, #23538a);
background-image: -moz-linear-gradient(top, #a7cfdf, #23538a);
background-image: -ms-linear-gradient(top, #a7cfdf, #23538a);
background-image: -o-linear-gradient(top, #a7cfdf, #23538a);
background-image: linear-gradient(to bottom, #a7cfdf, #23538a);filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=#a7cfdf, endColorstr=#23538a);
border-radius: 15px;

}