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  1. w3schools.com

    CSS References At W3Schools you will find complete CSS references of all properties and selectors with syntax, examples, browser support, and more.
    • HTML

      HTML - CSS Tutorial - W3Schools

    • CSS

      CSS - CSS Tutorial - W3Schools

    • Margins

      CSS has properties for specifying the margin for each side of an element: margin-top; margin-right; margin-bottom; margin-left; All the margin properties can have the following values: auto - the browser calculates the margin; length - specifies a margin in px, pt, cm, etc.

    • Grid Intro

      CSS Grid Layout. The Grid Layout Module offers a grid-based layout system, with rows and columns. The Grid Layout Module allows developers to easily create complex web layouts. The Grid Layout Module makes it easier to design a responsive layout structure, without using float or positioning. The CSS grid properties are supported in all modern ...

    • Float

      The float Property. The float property is used for positioning and formatting content e.g. let an image float left to the text in a container.. The float property can have one of the following values:. left - The element floats to the left of its container; right - The element floats to the right of its container; none - The element does not float (will be displayed just where it occurs in the ...

    • Exercise

      Exercise - CSS Tutorial - W3Schools

  2. developer.mozilla.org

    Use this CSS reference to browse an alphabetical index of all of the standard CSS properties, pseudo-classes, pseudo-elements, data types, functional notations and at-rules. You can also browse key CSS concepts and a list of selectors organized by type. Also included is a brief DOM-CSS / CSSOM reference.
  3. W3C Core Styles The W3C Core Styles offer authors an easy way to start using style sheets without becoming designers. By adding a link in the head of your documents, a CSS browser will fetch the style sheet of your choice from W3C's server when it encounters your document. A non-CSS browser will display the HTML document like it always did.
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