diff --git a/ext/handle_video/theme.php b/ext/handle_video/theme.php
index 159283b1..171582d5 100644
--- a/ext/handle_video/theme.php
+++ b/ext/handle_video/theme.php
@@ -42,7 +42,12 @@ class VideoFileHandlerTheme extends Themelet {
 				$html .= $html_fallback;
 			} else {
 				$html .= "
-					<video controls " . ($autoplay ? 'autoplay' : '') . " width=\"100%\" " . ($loop ? 'loop' : '') . ">
+					<video controls class='shm-main-image' id='main_image' alt='main image'"
+						. ($autoplay ? ' autoplay' : '')
+						. ($loop ? ' loop' : '')
+						. " data-width='{$image->width}' "
+						. " data-height='{$image->height}'>
+
 						<source src='{$ilink}' type='{$supportedExts[$ext]}'>
 
 						<!-- If browser doesn't support filetype, fallback to flash -->