code: function() {
        var el = jsl.$('jslitmus_container');
        if (!el) document.body.appendChild(el = document.createElement('div'));
  
        el.innerHTML = MARKUP;
  
        // Render the UI for all our tests
        for (var i=0; i < JSLitmus._tests.length; i++)
          JSLitmus.renderTest(JSLitmus._tests[i]);
      }
docs: Set up the UI