<input class="button" type="button" value="button" />
<input class="button" type="submit" value="submit" /> 
<input class="button" type="reset" value="reset" />

<style>
.button
{
border: 1px solid #DBE1EB;
font-size: 18px;
font-family: Arial, Verdana;
padding-left: 7px;
padding-right: 7px;
padding-top: 5px;
padding-bottom: 5px;
border-radius: 4px;
-moz-border-radius: 4px;
-webkit-border-radius: 4px;
-o-border-radius: 4px;
background: #4972B5;
background: linear-gradient(left, #4972B5, #618ACB);
background: -moz-linear-gradient(left, #4972B5, #618ACB);
background: -webkit-linear-gradient(left, #4972B5, #618ACB);
background: -o-linear-gradient(left, #4972B5, #618ACB);
color: #FFFFFF;
}
.button:hover
{
background: #365D9D;
background: linear-gradient(left, #365D9D, #436CAD);
background: -moz-linear-gradient(left, #365D9D, #436CAD);
background: -webkit-linear-gradient(left, #365D9D, #436CAD);
background: -o-linear-gradient(left, #365D9D, #436CAD);
color: #FFFFFF;
border-color: #FBFFAD;
}
 </style>