Here’s what I did to the CSS to make the button type fully visible:
button, input[type=”submit”], input[type=”reset”], input[type=”button”] {
margin: 0px;
padding: 1px 13px; display: inline-block; font-size: 14px ;
font-weight: bold; cursor: pointer; border-width: 1px; border-style: solid;
(Note: I’m not sure if this is a theme-oriented issue or not.)