Login Button verändern/ Login verändern

<form action="Login.htm" method="POST">
<table>
<tbody>
<tr>
<td>Benutzername:</td>
<td><input type="text" name="logindata[name]" class="login_input" value="" /></td>
</tr>
<tr>
<td>Kennwort:</td>
<td><input class="login_input" type="PASSWORD" name="logindata[kennwort]" value="" /></td>
</tr>
</tbody>
</table>
<input type="hidden" name="mode" value="1" /> <input type="hidden" name="checklogin" value="1" /> <input type="hidden" name="logindata[checklogin]" value="1" /> <input type="submit" value="Login" id="login_submit"/>
</form>

.login_input{
height:XXpx;
width:XXpx;
}

#login_submit{
/* Hier die Formatierungen */
}