drupal8_parallax_theme-3366654:Fixed the separator visibility issue on article.

css/global.css

@@ -200,13 +200,13 @@ input, button, select, textarea { padding: 6px; border: 1px solid #e3e3e3; }
 .btn:hover, input[type="submit"]:hover { background: #ea504e; color: #fff; }
 
 /*Comment*/
-.comment-wrap { overflow: hidden; margin-bottom: 20px; padding-bottom: 20px; border-bottom: 1px solid #F5F5F5; }
+.comment-wrap { overflow: hidden; margin-bottom: 20px; padding-bottom: 20px; border-bottom: 1px solid #a8a8a8; }
 .comment-wrap .author-details { float: left; width: 20%; }
 .comment-wrap .author-comments { padding-left: 5px; float: left; width: 80%; }
 .comment-wrap .author-comments h3 { margin-top: 10px; }
 .comment-wrap .author-comments p { margin-bottom: 10px; }
 
-.comment-submitted { padding: 5px 10px; border: 1px solid #eee; display: inline-block; line-height: 100%; }
+.comment-submitted { padding: 5px 10px; border: 1px solid #a8a8a8; display: inline-block; line-height: 100%; }
 
 /*links Inline*/
 ul.links.inline li { display: inline-block; padding-right: 10px; }