怎么让按钮里的文字加下划线

Question

<style type="text/css">
input.smallInput{background:#000000;border-bottom-color:#E1771E; border-bottom-width:1px;border-top-width:0px;border-left-width:0px;border-right-width:0px; solid #E1771E; color: #E1771E; FONT-SIZE: 9pt; FONT-STYLE: normal; FONT-VARIANT: normal; FONT-WEIGHT: normal; HEIGHT: 18px; LINE-HEIGHT: normal}
input.buttonface{BACKGROUND: #000000; border:1 solid #000000; COLOR: E1771E; FONT-SIZE: 9pt; FONT-STYLE: normal; FONT-VARIANT: normal; font-weight: normal; HEIGHT: 18px; LINE-HEIGHT: normal}
.style3 {
color: #FF9900;
font-size: 12px;
}
.style5 {color: #333333}
.style6 {color: #000000}
</style>我按钮的代码是                       
<INPUT type="submit" height=27 width=174 value=download border=0 name=submit valign="bottom" class="buttonface">
我想让download加下划线，请问应该加代码

Answer 1

<INPUT style="text-decoration:underline" type="submit" height=27 width=174 value=download border=0 name=submit valign="bottom" class="buttonface">