Always use 3-column layout on desktop and 1-column on phone

public/css/mobile-styles.css

@@ -1,5 +1,14 @@
 /*will apply to anything 1000px or less. this catches ipads, horizontal phones, and vertical phones)*/
 @media screen and (max-width: 1000px) {
+    #UI-Theme-Block,
+    #UI-Customization,
+    #power-user-options-block,
+    #ContextSettings,
+    #InstructSettingsColumn,
+    #InstructSequencesColumn {
+        flex-basis: auto;
+    }
+
 
     #send_form.compact #leftSendForm,
     #send_form.compact #rightSendForm {

public/style.css

@@ -4388,18 +4388,6 @@ body.big-avatars .missing-avatar {
     text-align: center;
 }
 
-#UI-Theme-Block,
-#UI-Customization,
-#power-user-options-block,
-#ContextSettings,
-#InstructSettingsColumn,
-#InstructSequencesColumn {
-    flex-basis: 250px;
-}
-
-
-
-
 .userSettingsInnerExpandable {
     border: 1px solid;
     border-color: var(--SmartThemeBorderColor);