title: Remove Opera Mobile blue border around <a> links
body: <p>I have an webapp, where buttons are created with <code>&lt;a&gt;</code> elements, and all have <code>href</code> set to <code>#</code>. I want to remove blue border around <code>&lt;a&gt;</code> links during mouse click, because Opera Mobile annoyingly highlights all <code>&lt;a&gt;</code> elements, which has same <code>href</code> set.</p>
  
  <p>Example picture:</p>
  
  <p><img src="https://i.stack.imgur.com/CSqD3.png" alt="enter image description here"></p>
  
  <p>How can I remove it?</p>