diff --git a/files/templates/comments.html b/files/templates/comments.html
index 7454e8277..428465a0a 100644
--- a/files/templates/comments.html
+++ b/files/templates/comments.html
@@ -917,7 +917,8 @@
 
 {% if not ajax and v and v.theme != 'transparent' %}
 	<script>
-		const color = window.getComputedStyle(document.body).getPropertyValue('background-color');  
+		const e = document.getElementsByClassName('container')[0]
+		const color = getComputedStyle(e).getPropertyValue('background-color');  
 
 		const markTemplate = (name) => {
 			return `<svg xmlns='http://www.w3.org/2000/svg' version='1.1' height='50px' width='100px'><text transform='translate(20, 40) rotate(-45)' fill='${color}' fill-opacity="0.1" font-size='20'>${name}</text></svg>`;