<style type="text/css">
input.userid {
padding-left:20px;
background:#ffffff url(/content/img/icon/color/user.gif) no-repeat left center;
width:100px;
}
input.password {
padding-left:20px;
background:#ffffff url(/content/img/icon/color/login.gif) no-repeat left center;
width:100px;
}
input.submit {
width:45px; height:20px;
background:url(/content/img/css/btn_login.gif) no-repeat center;
}
</style>
<form action="#" onsubmit="alert('サンプルのため送信はしません'); return false;">
<p>
<input type="userid" class="userid" size="20" maxlength="10" />
<input type="password" class="password" size="20" maxlength="10" />
<input type="submit" class="submit" value="" /><!-- ボタン用の背景画像使用のためvalueは空に! -->
</p>
</form>