Meta

ironhtml_elements

Struct Meta

pub struct Meta;

Expand description

The <meta> element - document metadata.

§Purpose

The <meta> element represents various kinds of metadata that cannot be represented by other HTML meta-related elements (<title>, <base>, <link>, <style>). Used for character encoding, viewport settings, SEO, and social media metadata.

§Content Categories

Metadata Content

§Permitted Content Model

None (void element)

§Common Use Cases

Setting character encoding (charset)
Configuring viewport for responsive design
Providing page description for search engines
Adding Open Graph tags for social media sharing
Setting HTTP headers via http-equiv

§Key Attributes

charset: Character encoding declaration (e.g., "UTF-8")
name: Metadata name (e.g., "viewport", "description", "author")
content: Metadata value (used with name or http-equiv)
http-equiv: Pragma directive (e.g., "refresh", "content-security-policy")

§Example

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="description" content="A comprehensive guide to HTML5">
  <meta property="og:title" content="HTML5 Guide">
  <meta property="og:image" content="https://example.com/image.png">
</head>

§WHATWG Specification

4.2.5 The meta element

Trait Implementations§

impl HtmlElement for Meta

const TAG: &'static str = "meta"

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

const VOID: bool = true

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

impl CanContain<Meta> for Head

impl MetadataContent for Meta

Auto Trait Implementations§

impl Freeze for Meta

impl RefUnwindSafe for Meta

impl Send for Meta

impl Sync for Meta

impl Unpin for Meta

impl UnwindSafe for Meta

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.