itemscope is a boolean global attribute that defines the scope of associated metadata. Specifying the itemscope attribute for an element creates a new item, which results in a number of name-value pairs that are associated with the element.
A related attribute, itemtype, is used to specify the valid URL of a vocabulary (such as schema.org) that describes the item and its properties context. In each of the following examples, the vocabulary is from schema.org.
Every HTML element may have an itemscope attribute specified. An itemscope element that does not have an associated itemtype must have an associated itemref.
Note: Find more about itemtype attributes at https://schema.org/Thing
When you specify the itemscope attribute for an element, a new item is created. The item consists of a group of name-value pairs. For elements with an itemscope attribute and an itemtype attribute, you may also specify an id attribute. You can use the id attribute to set a global identifier for the new item. A global identifier allows the item to relate to other items found on pages across the Web.
The following example specifies the itemtype as "http://schema.org/Movie", and specifies four related itemprop attributes.
<div itemscope itemtype="https://schema.org/Movie">
<h1 itemprop="name">Avatar</h1>
<span>
Director: <span itemprop="director">James Cameron</span> (born August 16,
1954)
</span>
<span itemprop="genre">Science fiction</span>
<a href="https://youtu.be/0AY1XIkX7bY" itemprop="trailer">Trailer</a>
</div>
There are four itemscope attributes in the following example. Each itemscope attribute sets the scope of its corresponding itemtype attribute. The itemtypes, Recipe, AggregateRating, and NutritionInformation in the following example are part of the schema.org structured data for a recipe, as specified by the first itemtype, http://schema.org/Recipe.
Note: A handy tool for extracting microdata structures from HTML is Google's Rich Results Testing Tool. Try it on the HTML shown here.
HTML<div itemscope itemtype="https://schema.org/Recipe">
<h2 itemprop="name">Grandma's Holiday Apple Pie</h2>
<img
itemprop="image"
src="https://c1.staticflickr.com/1/30/42759561_8631e2f905_n.jpg"
width="50"
height="50" />
<p>
By
<span itemprop="author" itemscope itemtype="https://schema.org/Person">
<span itemprop="name">Carol Smith</span>
</span>
</p>
<p>
Published:
<time datetime="2022-11-05" itemprop="datePublished">
November 5, 20022
</time>
</p>
<span itemprop="description">
This is my grandmother's apple pie recipe. I like to add a dash of nutmeg.
</span>
<br />
<span
itemprop="aggregateRating"
itemscope
itemtype="https://schema.org/AggregateRating">
<span itemprop="ratingValue">4.0</span> stars based on
<span itemprop="reviewCount">35</span> reviews
</span>
<br />
Prep time: <time datetime="PT30M" itemprop="prepTime">30 min</time>
<br />
Cook time: <time datetime="PT1H" itemprop="cookTime">1 hour</time>
<br />
Total time: <time datetime="PT1H30M" itemprop="totalTime">1 hour 30 min</time>
<br />
Yield: <span itemprop="recipeYield">1 9" pie (8 servings)</span>
<br />
<span
itemprop="nutrition"
itemscope
itemtype="https://schema.org/NutritionInformation">
Serving size: <span itemprop="servingSize">1 medium slice</span><br />
Calories per serving: <span itemprop="calories">250 cal</span><br />
Fat per serving: <span itemprop="fatContent">12 g</span><br />
</span>
<p>
Ingredients:<br />
<span itemprop="recipeIngredient">Thinly-sliced apples: 6 cups<br /></span>
<span itemprop="recipeIngredient">White sugar: 3/4 cup<br /></span>
â¦
</p>
Directions: <br />
<div itemprop="recipeInstructions">
1. Cut and peel apples<br />
2. Mix sugar and cinnamon. Use additional sugar for tart apples. <br />
â¦
</div>
</div>
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