Vertical-top align ul items side by side

Question

I set my UL items to have display: inline-block, 30% width, and they align side by side corretly.

But, they vertical align to bottom if there is a bigger li.

Is there any way to top align this items?

One solution that I don't like is to have a Javascript that equals height from all elements, but don't seens to be a clean solution to this problem, since different rows may need different heights.

Code snippet here..

ul {
  display: block;
  width: 100%;
  list-style: none;
  padding: 0;
}
ul > li {
  display: inline-block;
  width: 50%;
}

<ul>
  <li>
    <h1>Item A with Long text</h1>
    Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam quisquam debitis officia impedit sed omnis dolorem nihil doloribus dolore provident totam unde minus possimus quae dignissimos quo necessitatibus ipsa molestias.
  </li>
  <li>
    <h1>Item B with Short Text</h1>
  </li>
  <li>
    <h1>Item C with Short Text</h1>
  </li>
  <li>
    <h1>Item D with Short Text</h1>
  </li>
</ul>

Answer 1

This is also related to the famous white space bug.

See this demo with the fix using font size https://jsfiddle.net/8hfgmwLy/2/

HTML

<ul>
    <li>
        <h1>Item A with Long text</h1>
        Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam quisquam debitis officia impedit sed omnis dolorem nihil doloribus dolore provident totam unde minus possimus quae dignissimos quo necessitatibus ipsa molestias.
    </li>
    <li>
        <h1>Item B with Short Text</h1>
    </li>
    <li>
        <h1>Item C with Short Text</h1>
    </li>
    <li>
        <h1>Item D with Short Text</h1>
    </li>
</ul>

CSS

ul {
    display: block;
    width: 100%;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0;
}

ul > li {
    display: inline-block;
    width: 25%;
    background: grey;
    vertical-align: top;
    font-size: 14px;
}