How can I style the default template / form upload in Manage Pictures

<div class="pictureform">
		<form action="/serrechevaliergallery.html" method="post" name="editform" id="editform">
			<input name="action" value="edit_pics" type="hidden"><input name="mode" value="admin" type="hidden"><input name="number" value="4" type="hidden">
	
			<input value="Back to normal view" onclick="location.href='/serrechevaliergallery.html'" type="button">
			<input value="Save changes" type="submit">

			<input value="Sort pictures" id="dragButton" onclick="openDragWin('/serrechevaliergallery.html?dragsort=1', 600, 500)" type="button">
	
			<br><br>
			<a href="/serrechevaliergallery.html#uploadform">Jump to upload form</a>
			<br><br>
		
			<div class="managepicturecontainer">

<div class="managecontainer">
	<a name="top"></a>
	<p>
		[+maxigallery.messages+]
	</p>
	<p>
		[+maxigallery.strings.gallery_description+]:
		<br />
		[+maxigallery.pageinfo.description+]
	</p>
	<div class="pictureform">
		<form action="[+maxigallery.urlaction+]" method="post" name="editform" id="editform">
			[+maxigallery.hiddenfields.mainform+]
	
			<input type="button" value="[+maxigallery.strings.back_to_normal_view+]" onclick="location.href='[+maxigallery.urlback+]'"/>
			<input type="submit" value="[+maxigallery.strings.save_changes+]" />
			<input type="button" value="[+maxigallery.strings.sort_pictures+]" id="dragButton" onclick="openDragWin('[+maxigallery.urldragsort+]', 600, 500)" />
	
			<br /><br />
			<a href="[+maxigallery.urlaction+]#uploadform">[+maxigallery.strings.jump_to_upload_form+]</a>
			<br /><br />
		
			[+maxigallery.managepictures+]
		
		</form>
	</div>
	
	<div class="uploadform">
		<a href="[+maxigallery.urlaction+]#top">[+maxigallery.strings.back_to_top+]</a>
		<a name="uploadform"></a>
		<br />
		[+maxigallery.pics_allowed_count:isnot=``:then=`
			<br />[+maxigallery.strings.number_allowed+]: [+maxigallery.pics_allowed_count+]
		`+]
		[+maxigallery.pics_allowed_count:isnot=`0`:then=`
			<br /><br />
			<form action="[+maxigallery.urlaction+]" method="post" enctype="multipart/form-data" name="uploadform">
				[+maxigallery.hiddenfields.uploadform+]

				[+maxigallery.uploadpictures+]
	
				<br class="clearboth" />
	
				<input type="submit" value="[+maxigallery.strings.upload_pictures+]" />
			</form>
		`+]
	</div>
	<br class="clearboth" />
	<hr />
	
	<div class="deleteform">
		<form action="[+maxigallery.urlaction+]" method="post" name="deleteform">
			[+maxigallery.hiddenfields.deleteform+]
			<input type="submit" value="[+maxigallery.strings.delete_all_pictures+]" onClick="return confirm('[+maxigallery.strings.delete_all_confirmation+]')" />
		</form>
	</div>
	
	<div class="synchform">
    	<form action="[+maxigallery.urlaction+]" method="post" name="synchform">
			<input type="hidden" name="action" value="gallery_synch" /><input type="hidden" name="mode" value="admin" />
            <input type="submit" value="[+maxigallery.strings.resynch+]" />
        </form>
    </div>
    
	<br class="clearboth" />
	<hr />
	    
</div>