Main

ironhtml_elements

Struct Main

pub struct Main;

Expand description

The <main> element - main content.

§Purpose

The <main> element represents the dominant content of the <body> of a document. The main content area consists of content directly related to or expanding upon the central topic. There should be only one <main> element per page (not hidden).

§Content Categories

Flow Content
Palpable Content

§Permitted Content Model

Flow content

§Common Use Cases

Main content area of a webpage
Primary content excluding headers, footers, and navigation
Content unique to the page (not repeated across pages)
Central topic or functionality of a page

§Key Attributes

Global attributes only

§Example

<body>
  <header>
    <h1>My Website</h1>
    <nav>...</nav>
  </header>
   
  <main>
    <h2>Welcome to Our Site</h2>
    <article>
      <h3>Latest News</h3>
      <p>Content...</p>
    </article>
  </main>
   
  <footer>...</footer>
</body>

§Accessibility

Screen readers provide shortcuts to jump to <main> content
Critical for keyboard navigation and skip links
Only one visible <main> per page

§WHATWG Specification

4.3.11 The main element

Trait Implementations§

impl HtmlElement for Main

const TAG: &'static str = "main"

The HTML tag name (e.g., “div”, “span”, “img”).

const VOID: bool = false

Whether this is a void element (self-closing, no children allowed).

impl<T: FlowContent> CanContain<T> for Main

impl FlowContent for Main

impl PalpableContent for Main

Auto Trait Implementations§

impl Freeze for Main

impl RefUnwindSafe for Main

impl Send for Main

impl Sync for Main

impl Unpin for Main

impl UnwindSafe for Main

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.