jina bolton

3JINA BOLTON

http://creatingsexystylesheets.com/

by Cameron Adams

Jina Bolton

David Johnson

Steve Smith

Jonathan Snook

Published by SitePoint

The Art & Science of css

css3

“css 3

A Giant Servingof FAIL!

— alex russellhttp://alex.dojotoolkit.org/?p=625

“css 3

"Third Time Lucky#!— andy clarke

css 1 1996

css 2 1997

candidate recommendationcss 2.1

css 3 modul!

Sele$orsMulti%columnLayout

GridPositioning

AdvancedLayoutMedia

Queries

Backgrounds& Borders

Style any box&s borders and background including attach multiple background%images to a single element.

Backgrounds& Borders

Backgrounds & Borders

%border-radius

%border-break

%border-image

%box-shadow

<div class="vcard">

<div class="addr-bl">

<div class="addr-tr">

…

</div>

</div>

</div>

.vcard {

background:

#000

url(a-grad.gif)

repeat-x;

}

.addr-bl {

background:

url(a-bl.gif)

100% 0

no-repeat;

}

.addr-tr {

background:

url(a-tr.gif)

100% 0

no-repeat;

}

<div class="vcard">…</div>

.vcard {

background-color: #000;

background-image:

url(a-grad.gif),

url(a-bl.gif),

url(a-tr.gif);

background-repeat:

repeat-x,

no-repeat,

no-repeat;

background-position:

0 0,

100% 0,

0 100%;

}

Making it simpler to create column layouts without additional markup by using column widths, counts, gaps and rules.

Multi%column Layout

<div class="entry-content">

<div class="col first">

…

</div>

<div class="col">

…

</div>

</div>

.entry-content .col {

float: left;

width: 467px;

margin-left: 30px;

}

.entry-content .first {

margin-left: 0;

}

/* .entry-content

clear-fix rules */

<div class="entry-content">

…

</div>

.entry-content {

column-count: 2;

column-gap: 30px;

}

<div class="entry-content">

…

</div>

.entry-content {

column-width: 270px;

column-gap: 30px;

}

<div class="vcard">…</div>

.vcard {

border-image:

url("border.png")

30 30 30 30

stretch;

border:

double green 1em;

}

Aims to fully separate visual layout order from a document&s content by de'ning (slots! in a grid in which content can )ow or be placed, or that remain empty * all without additional markup.

Advanced Layout

a b c d

e f g h

i j k l

a a c d

e e g g

i j k l

@ @ . .

e @ @ h

. j j l

Gives the ability to add invisible grid rules to create grid layouts "like in books and newspapers#, and uses sizing and new )oat properties for placing content.

Grid Positioning

<div class="entry-content">

…

</div>

.entry-content {

column-count: 4;

column-gap: 30px;

}

.entry-content {

grid-columns:

(30px * *)[4];

column-count: 4;

column-gap: 30px;

}

.entry-content {

grid-columns:

(30px * *)[4];

grid-rows:

9em 33.3% *;

column-count: 4;

column-gap: 30px;

}

<div class="entry-content">

…

<img src="sushi.jpg"

class="photo"

alt="" />

…

</div>

.entry-content img.photo {

float: page bottom left;

float-offset: 4gr 1gr;

}

<div class="entry-content">

<h2>What is Sushi?</h2>

…

<img src="sushi.jpg"

class="photo"

alt="" />

</div>

ic

.entry-content h2 {

float: page top left;

width: 6gr;

height: 1gr;

margin-left: -30px;

}

.entry-content img.photo {

float: page bottom left;

float-offset: 4gr 1gr;

}

Re'ned sele$ors to target an element based on an attribute or position in the document )ow plus new pseudo%classes and pseudo%elements.

Sele$ors

Sele$ors

%E:only-of-typean element which is the only sibling of its type

%E:not(s)an element that d+s not match simple sele$ors

%E ~ Fan F element preceded by an E element

an element which is the n%th child of its parent

E:nth-child(n)

Sele$ors

<tr class="alt"></tr>

<tr></tr>

tr.alt td {

background: #ecffd9;

}

<tr></tr>

tr:nth-child(odd) td {

background: #ecffd9;

}

<tr class="high-rank">…</tr>

<tr class="high-rank">…</tr>

<tr class="high-rank">…</tr>

<tr>…</tr>

tr.high-rank td {

background: #ecffd9;

}

<tr>…</tr>

tr:nth-child(-n+3) td {

background: #ecffd9;

}

an element which is the n%th child of its parent, counting from the la, one

E:nth-last-child(n)

Sele$ors

<tr>…</tr>

<tr class="low-rank">…</tr>

<tr class="low-rank">…</tr>

<tr class="low-rank">…</tr>

tr.low-rank td {

opacity: .75;

}

<tr>…</tr>

tr:nth-last-child(-n+2) td {

opacity: .75;

}

an element which is the n%th sibling of its type

E:nth-of-type(n)

Sele$ors

<p class="intro">…</p>

<p>…</p>

p.intro {

background: #fafcf5;

font-size: 1.3em;

color: #060;

}

<p>…</p>

p:first-of-type {

background: #fafcf5;

font-size: 1.3em;

color: #030;

}

Extending the usefulness of media types in combination with window widths, heights and aspe$ ratio.

Media Queries

Resources

CSS ELEVEN IS AN INTERNATIONAL GROUP OF VISUAL WEB DESIGNERS AND DEVELOPERS WHO ARE COMMITTED TO

HELPING THE W3C'S CSS WORKING GROUP TO BETTER DELIVER THE TOOLS THAT ARE NEEDED TO DESIGN TOMORROW'S WEB.

Resources

%w3c Introdu$ion to css 3w3.org/TR/css3-roadmap

%css Working Group Blogw3.org/blog/CSS

%456 Berea Street456bereastreet.com

%css3.info

Resources

%A Li, Apartalistapart.com

%Transcending css Supporttranscendingcss.com/support/

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Q&A