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HTML attributes are special words used inside the opening tag to control the element's behaviour. It is a piece of markup language used to adjust the behavior or display of an HTML element.HTML attributes are a modifier of a HTML element type.
A web style sheet is a form of separation of content and presentation for web design in which the markup (i.e., HTML or XHTML) of a webpage contains the page's semantic content and structure, but does not define its visual layout (style).
The title attribute is used to attach a subtextual explanation to an element. In most browsers this attribute is displayed as a tooltip. The lang attribute identifies the natural language of the element's contents, which may be different from that of the rest of the document. For example, in an English-language document:
XHTML5 is simply XML-serialized HTML5 data (that is, HTML5 constrained to XHTML's strict requirements, e.g., not having any unclosed tags), sent with one of XML media types. HTML that has been written to conform to both the HTML and XHTML specifications and therefore produces the same DOM tree whether parsed as HTML or XML is known as polyglot ...
To demonstrate specificity Inheritance Inheritance is a key feature in CSS; it relies on the ancestor-descendant relationship to operate. Inheritance is the mechanism by which properties are applied not only to a specified element but also to its descendants. Inheritance relies on the document tree, which is the hierarchy of XHTML elements in a page based on nesting. Descendant elements may ...
The src attribute specifies the image URL. The required alt attribute provides alternative text in case the image cannot be displayed. [50] (Though alt is intended as alternative text, Microsoft Internet Explorer 7 and below render it as a tooltip if no title attribute is given. [51]
However, the attribute should be used when a fixed grid arrangement is appropriate, such as "before/after", "low/medium/high", or other systematic comparisons of images. If perrow is omitted, the width is fluid: one row comprises as many images as will fit across the available width of the user's display, wrapping automatically to as many ...
However, it varied depending on the element. The HTML width attribute of a table defined the width of the table including its border. [7] On the other hand, the HTML width attribute of an image defined the width of the image itself (inside any border). [8] The only element to support padding in those early days was the table cell.