Glossary Term
HTML summary element
The <summary> HTML element specifies a summary, caption, or legend for a <details> element’s disclosure box. Clicking the <summary> element toggles the state of the parent <details> element open and closed.
The <summary> element’s contents can be any heading content, plain text, or HTML that can be used within a paragraph.
A <summary> element may only be used as the first child of a <details> element. When the user clicks on the summary, the parent <details> element is toggled open or closed, and then a toggle event is sent to the <details> element, which can be used to let you know when this state change occurs.
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