Represents the <h1>-<h6> heading elements. Default search finds the first occurring element.

<h1>Some header</h1>
<h2>Another header</h2>
using Atata;
using _ = SampleApp.SamplePage;

namespace SampleApp
{
    public class SamplePage : Page<_>
    {
        public H1<_> Header { get; private set; }

        public H2<_> SecondaryHeader { get; private set; }
    }
}
Go.To<SamplePage>().
    Header.Should.Equal("Some header").
    SecondaryHeader.Should.Contain("Another");

Supports [Format] settings attribute.