标题（Title）和子标题（Subtitle）

<h1 class="title">Title</h1>
<h2 class="subtitle">Subtitle</h2>

<h1 class="title is-1">Title 1</h1>
<h2 class="title is-2">Title 2</h2>
<h3 class="title is-3">Title 3</h3>
<h4 class="title is-4">Title 4</h4>
<h5 class="title is-5">Title 5</h5>
<h6 class="title is-6">Title 6</h6>

<h1 class="subtitle is-1">Subtitle 1</h1>
<h2 class="subtitle is-2">Subtitle 2</h2>
<h3 class="subtitle is-3">Subtitle 3</h3>
<h4 class="subtitle is-4">Subtitle 4</h4>
<h5 class="subtitle is-5">Subtitle 5</h5>
<h6 class="subtitle is-6">Subtitle 6</h6>

<p class="title is-1">Title 1</p>
<p class="subtitle is-3">Subtitle 3</p>

<p class="title is-2">Title 2</p>
<p class="subtitle is-4">Subtitle 4</p>

<p class="title is-3">Title 3</p>
<p class="subtitle is-5">Subtitle 5</p>

<p class="title is-1 is-spaced">Title 1</p>
<p class="subtitle is-3">Subtitle 3</p>

<p class="title is-2 is-spaced">Title 2</p>
<p class="subtitle is-4">Subtitle 4</p>

<p class="title is-3 is-spaced">Title 3</p>
<p class="subtitle is-5">Subtitle 5</p>