Fix: minor

options.html

@@ -254,7 +254,7 @@
             <span></span>
           </span>
         </label>
-        <label class="option-item">
+        <label>
           <span i18n-text="optionsAdvancedExposeIframes">
             <a data-cmd="note"
                i18n-data-title="optionsAdvancedExposeIframesNote"
@@ -270,14 +270,14 @@
             <span></span>
           </span>
         </label>
-        <label class="chromium-only option-item">
+        <label class="chromium-only">
           <span i18n-text="optionsAdvancedContextDelete"></span>
           <span class="onoffswitch">
             <input type="checkbox" id="editor.contextDelete" class="slider">
             <span></span>
           </span>
         </label>
-        <div class="radio-group option-item">
+        <div class="radio-group">
           <span i18n-text="optionsAdvancedAutoSwitchScheme" class="radio-group-label"></span>
           <label class="radio-group-item">
             <input type="radio" value="never" name="schemeSwitcher.enabled" class="radio">

options/options.css

@@ -372,10 +372,6 @@ html:not(.firefox):not(.opera) #updates {
   width: 3em;
 }
 
-.option-item {
-  margin: .25ex 0;
-}
-
 /* pixel perfect radio */
 input[type="radio"].radio::after {
   position: absolute;