Use the scope attribute to specify a style for a <div> element:
The scoped attribute is currently supported only in Firefox.
The scoped attribute is a boolean attribute.
When present, it specifies that the styles only apply to this element's parent element and that element's child elements (not the entire document).
The scoped attribute is new in HTML5.
In XHTML, attribute minimization is forbidden, and the scoped attribute must be defined as <style scoped="scoped" />.
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