CSS3 BEST PRACTICES
HOW ARE DEVELOPED THE NEW STANDARDS OF CSS?
WHAT IS THE DIFFERENCE BETWEEN CSS2 AND CSS3?
COLOR MODULE LEVEL 3
SELECTORS LEVEL 3
CONDITIONAL RULES MODULE LEVEL 3
VALUES AND UNITS MODULE LEVEL 3
Thank you for attention!
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CSS3 best practices

1. CSS3 BEST PRACTICES

Thursday, October 6, 2016
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2. HOW ARE DEVELOPED THE NEW STANDARDS OF CSS?

W3C negotiation stages:
Draft
Working Draft
Last Call
Candidate Recommendation
Proposed Recommendation
Recommendation
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3. WHAT IS THE DIFFERENCE BETWEEN CSS2 AND CSS3?

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4. COLOR MODULE LEVEL 3

• rgba();
• currentColor;
• transparent = rgba(0, 0, 0, 0);
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5. SELECTORS LEVEL 3

• Basic selectors (elname, .class, #id, [attr=value],
*);
• Combinators:
A B (Descendant selectors)
A > B (Child selectors)
A + B (Adjacent sibling selectors)
A ~ B (General sibling selectors)
• Pseudo-classes (:empty, :first-of-type, :not,
:only-child, :nth-child(n), :nth-child(an+b),
:nth-last-child(an+b));
• Pseudo-elements (:first-line , :before, :after);
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6. CONDITIONAL RULES MODULE LEVEL 3

• @media;
• @support;
• How to determine user browser via CSS?
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7. VALUES AND UNITS MODULE LEVEL 3


initial and inherit;
Viewport units - vw, vh, vmax, and vmin;
calc();
attr();
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8. Thank you for attention!

THANK YOU FOR ATTENTION!
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