title: Qt5, set text size in lineEdit
body: <p>Is it possible to change text size (and font too) in Qt5 QLineEdit class?
  I looked in the <a href="http://doc.qt.io/qt-5/qlineedit.html" rel="nofollow noreferrer">official documentation</a> but found no solution.</p>
  
  <pre><code>//the font I want to use to display a message
  QFont littleFont("Courier New", 10);
  
  //my message
  QString strS = "hi all"
  
  // setting the message in my lineEdit object
  ui.lineEdit-&gt;setText(strS);
  </code></pre>