anchor.diff:              <h2>Voice: $25/hr</h2>
           </div>
       </aside>
  +    </section>
   
       <!-- Portfolio -->
       <section id="portfolio" class="portfolio">
  
positive.code:                                     <strong>Piano</strong>
                                  </h4>
                                  <p>I offer piano lessons for...etc.</p>
                                  <a href="#" class="btn btn-light">Learn More</a>
                              </div>
                          </div>
                          <div class="col-md-6 col-sd-3">
  
negative.code:                                     <strong>Voice</strong>
                                  </h4>
                                  <p>I offer voice lessons for... etc.</p>
                                  <a href="#costs" class="btn btn-light">Learn More</a>
                              </div>
                          </div>
  
  