images history fix all known bug

style.css

@@ -20,7 +20,7 @@
     padding-right: 0.25em;
     margin: 0.1em 0;
     opacity: 0%;
-    cursor: default;    
+    cursor: default;	
 }
 
 .output-html p {margin: 0 0.5em;}
@@ -442,7 +442,7 @@ input[type="range"]{
 }
 
 .red {
-    color: red;
+	color: red;
 }
 
 .gallery-item {
@@ -505,4 +505,4 @@ canvas[key="mask"] {
     top: -0.6em;
     z-index: 200;
     width: 8em;
-}
+}