header text set in bootstrap code example

Example 1: bootstrap heading

<p class="h1">h1. Bootstrap heading</p>
<p class="h2">h2. Bootstrap heading</p>
<p class="h3">h3. Bootstrap heading</p>
<p class="h4">h4. Bootstrap heading</p>
<p class="h5">h5. Bootstrap heading</p>
<p class="h6">h6. Bootstrap heading</p>

Example 2: bootstrap 4 title

$(function () {
  $('[data-toggle="tooltip"]').tooltip()
})