diff --git a/common/content/buffer.js b/common/content/buffer.js
index 758c6065..63da798b 100644
--- a/common/content/buffer.js
+++ b/common/content/buffer.js
@@ -1626,8 +1626,9 @@ const Buffer = Module("buffer", {
                             return false;
 
                         let computedStyle = util.computedStyle(elem);
+                        let rect = elem.getBoundingClientRect();
                         return computedStyle.visibility != "hidden" && computedStyle.display != "none" &&
-                            computedStyle.MozUserFocus != "ignore";
+                            computedStyle.MozUserFocus != "ignore" && rect.width && rect.height;
                     });
 
                     dactyl.assert(elements.length > 0);
diff --git a/common/content/commands.js b/common/content/commands.js
index 92b1626b..5a95bae0 100644
--- a/common/content/commands.js
+++ b/common/content/commands.js
@@ -285,6 +285,8 @@ const Command = Class("Command", {
      */
     replacementText: null
 }, {
+    bindMacro: function (args, default_) {
+    },
 
     // TODO: do we really need more than longNames as a convenience anyway?
     /**
diff --git a/common/locale/en-US/repeat.xml b/common/locale/en-US/repeat.xml
index 96641bd4..5533f47c 100644
--- a/common/locale/en-US/repeat.xml
+++ b/common/locale/en-US/repeat.xml
@@ -254,14 +254,14 @@
      \ p<str delim="">:first-line</str> { <em>font-variant</em>: <str delim="">small-caps</str>; }
      \ div<em>#side-bar</em> > <str delim="">:first-child</str> { <em>display</em>: <str delim="">none</str>; }</code>
 
-<code><ex>:command</ex> <str delim="">do-some-stuff</str>
+<code><ex>:command!</ex> <str delim="">do-some-stuff</str>
         \ <em>-description</em> <str>A command which does some stuff in JavaScript</str>
         \ <ex>:javascript</ex> &lt;&lt;<em>EOF</em>
         \     window.do(<str>some</str>);
         \     window.do(<str>stuff</str>);
         \<em>EOF</em></code>
 
-<code><ex>:command</ex> <str delim="">do-some-stuff</str>
+<code><ex>:command!</ex> <str delim="">do-some-stuff</str>
         \ <em>-description</em> <str>A command which does some stuff in JavaScript</str>
         \ <ex>:javascript</ex>
         \\    window.do(<str>some</str>);