title: how to make icons and buttons bigger in ionic 2
body: <p>How can make <code>button</code> and <code>icon</code> size bigger in fallowing code:</p>
  
  <pre><code>&lt;ion-card&gt;
    &lt;ion-card-header&gt;
      Explore Nearby
    &lt;/ion-card-header&gt;
  
    &lt;ion-list&gt;
      &lt;button ion-item&gt;
        &lt;ion-icon name="cart" item-left&gt;&lt;/ion-icon&gt;
        Shopping
      &lt;/button&gt;
  
      &lt;button ion-item&gt;
        &lt;ion-icon name="medical" item-left&gt;&lt;/ion-icon&gt;
        Hospital
      &lt;/button&gt;
  
      &lt;button ion-item&gt;
        &lt;ion-icon name="cafe" item-left&gt;&lt;/ion-icon&gt;
        Cafe
      &lt;/button&gt;
    &lt;/ion-list&gt;
  &lt;/ion-card&gt;
  </code></pre>