strip carriage return

www/slide/slide.less

@@ -280,7 +280,8 @@ div#modal #content, #print {
             max-width: 90%;
             max-height: 90%;
             margin: auto;
-        }␍        .slideNumber {
+        }
+        .slideNumber {
             position: absolute;
             right: 5vh;
             bottom: 5vh;