Update kitchen sink markup

Author: adamwathan

kitchen-sink.html

@@ -120,8 +120,8 @@ <h2 class="text-2xl font-bold">Reset styles</h2>
                 placeholder="Enter some long form content."
               ></textarea>
             </label>
-            <div class="block">
-              <span class="text-gray-700">Checkboxes</span>
+            <fieldset class="block">
+              <legend class="text-gray-700">Checkboxes</legend>
               <div class="mt-2">
                 <div>
                   <label class="inline-flex items-center">
@@ -142,9 +142,9 @@ <h2 class="text-2xl font-bold">Reset styles</h2>
                   </label>
                 </div>
               </div>
-            </div>
-            <div class="block">
-              <span class="text-gray-700">Radio Buttons</span>
+            </fieldset>
+            <fieldset class="block">
+              <legend class="text-gray-700">Radio Buttons</legend>
               <div class="mt-2">
                 <div>
                   <label class="inline-flex items-center">
@@ -165,7 +165,7 @@ <h2 class="text-2xl font-bold">Reset styles</h2>
                   </label>
                 </div>
               </div>
-            </div>
+            </fieldset>
           </div>
         </div>
       </div>