<form method="get" action="https://cs12.net/form/submit.php">
   <div>
     <fieldset>
       <legend>Name       </legend>
       <label>First Name
         <input type="text" name="fname" size="30"/>
       </label>
       <label>Last Name
         <input type="text" name="lname" size="30"/>
       </label>     </fieldset>
     <fieldset>
       <legend>Sports       </legend>
       <fieldset>
         <legend>Do you like basketball?         </legend>
         <label>
           <input type="radio" name="basketball" value="Y"/>
Yes         </label>
         <label>
           <input type="radio" name="basketball" value="N"/>
No         </label>       </fieldset>
       <fieldset>
         <legend>Do you like baseball?         </legend>
         <label>
           <input type="radio" name="baseball" value="Y"/>
Yes         </label>
         <label>
           <input type="radio" name="baseball" value="N"/>
No         </label>       </fieldset>     </fieldset>
     <button type="submit">Submit     </button>
   </div>
 </form> 

In style element (<style>) within head element:

label { display: block; }
fieldset { margin-top: 1rem;}
button { display: block; margin-top: 1rem; padding: 0.5rem 1rem;}