> For the complete documentation index, see [llms.txt](https://docs.matestack.io/matestack-ui-core/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.matestack.io/matestack-ui-core/1.5.0/components-api/core-components/header.md).

# Header

The HTML `<header>` tag, implemented in Ruby.

## Parameters

This component accepts all the canonical [HTML global attributes](https://www.w3schools.com/tags/ref_standardattributes.asp) like `id` or `class`.

## Examples

## Example 1: Basic usage

```ruby
header id: "foo", class: "bar" do
  plain 'Hello World' #optional content
end
```

returns

```markup
<header id="foo" class="bar">
  Hello World
</header>
```