How deeply does CSS in Depth, Second Edition cover style attribute?

Explains direct application, cascade precedence, and !important exceptions without developing broader selector or layer mechanics.

Style attribute

As explained in CSS in Depth, Second Edition

The style attribute is an HTML attribute whose value contains CSS declarations applied directly to its element.

The style attribute holds CSS declarations directly on an HTML element. Because those declarations target the element without a selector, they override declarations from a stylesheet or a style element. section 1.1.2

Making one navigation link orange

Add the declaration to the Specials link: <a href="/specials" class="featured" style="background-color: orange;">Specials</a>. The orange background applies only to that link and takes precedence over matching selector-based rules. section 1.1.2

Use the style attribute with these cascade rules in mind:

Apply it when a declaration must affect one specific element directly. section 1.1.2
Expect it to outrank declarations applied through CSS selectors in a stylesheet or a style element. section 1.1 section 1.1.2
Override a normal inline declaration from a stylesheet only by using !important; avoid making inline declarations important, because nothing can override them. section 1.1.2
Prefer moving the rule into a stylesheet when a reusable or easier-to-maintain approach is possible. section 1.1.2

How CSS in Depth, Second Edition covers it

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Also explained in

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WordPress Power Toolkit: Harness AI to build next-level websitesThe style attribute is an HTML attribute that contains CSS declarations applied directly to one element.
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D3.js in Action, Third EditionAn HTML or SVG attribute whose value contains CSS declarations applied directly to that element.
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Web Design PlaygroundAn HTML attribute that lets CSS declarations be written directly on an individual element.
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React in DepthAn inline style is a CSS declaration assigned directly to an individual HTML element through its style property.
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Web Design Playground, Second EditionThe HTML style attribute contains CSS declarations applied directly to an element.
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Build a Website with ChatGPTAn inline style is CSS presentation code embedded directly in an HTML element or tag rather than stored in a separate stylesheet.

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Related concepts

internal stylealternative to · An internal style sheet is a collection of CSS rules embedded within an HTML document, typically in a style element.
external stylealternative to · An external style is a stylesheet stored as a separate resource and linked to one or more documents.
pseudo-classcontrasts with · A CSS pseudo-class is a selector construct that matches elements according to a state, condition, or structural relationship.
objectuses · A computational object is a runtime entity or structured value representing data, state, or a resource, with properties or operations defined by its programming model.
style propertyconfigures · A style property is a named setting or interface attribute that specifies or exposes a presentation characteristic of an element or view.
HTML taguses · An HTML tag is angle-bracket-delimited markup that identifies, structures, or marks the boundary of an element in an HTML document.

This explainer was generated by Manning's knowledge graph from the text of CSS in Depth, Second Edition. The section links point to the parts of the book it draws on.