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Beyond the CSS Architecture
Components
CSS
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Front-end Engineer
Hiroki Tani
github.com/hiloki
twitter.com/hiloki
inkdesign.jp
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CSS
Mark-up
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CSS
Mark-up
Designer
➡
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CSS
Mark-up
Designer
➡
Engineer
⬅
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CSS
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Easy
.text {
color: red;
}
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Hard
too
#main .article { ... }
#main .article .title { ... }
#main .breaking .title { ... }
#header #logo img { ... }
#header li#logoTop { ... }
#header li#logoTop:after {
.article-header .datetime s
ul.member-list li.member a
.widget p,.widget ul { ... }
#sidebar .widget { ... }
#sidebar li a.register{}
body.landing #main sectio
#slider #slider-control > di
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CSS Architecture
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http://codepen.io/hiloki/full/dnGeB
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No content
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…
...
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No content
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.speaker {
overflow: hidden; /* Clearfix */
padding: 20px;
background-color: #fff;
}
.speaker .image {
float: left;
margin-right: 15px;
}
.speaker .image > img {
border-radius: 60px;
}
.speaker .inner {
overflow: hidden;
}
…
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No content
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...
...
...
- ...
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No content
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.book {
overflow: hidden; /* Clearfix */
padding: 20px;
background-color: #9DBCB8;
color: #FFF;
}
.book .cover {
float: left;
margin-right: 20px;
}
.book .inner {
overflow: hidden;
}
.book .title {
...
}
...
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No content
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No content
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.event > a {
display: block;
}
.event .thumbnail {
float: left;
margin-right: 15px;
}
.event .inner {
overflow: hidden;
}
…
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No content
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No content
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…
...
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No content
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/* Media */
.media {
overflow: hidden; /* Clearfix */
}
.media__image {
float: left;
margin-right: 15px;
}
.media__body {
overflow: hidden;
}
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.speaker {
overflow: hidden; /* Clearfix */
padding: 20px;
background-color: #fff;
}
.speaker .image {
float: left;
margin-right: 15px;
}
.speaker .image > img {
border-radius: 60px;
}
.speaker .inner {
overflow: hidden;
}
…
.speaker {
overflow: hidden; /* Clearfix */
padding: 20px;
background-color: #fff;
}
.speaker .image {
float: left;
margin-right: 15px;
}
.speaker .image > img {
border-radius: 60px;
}
.speaker .inner {
overflow: hidden;
}
…
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.speaker {
overflow: hidden; /* Clearfix */
padding: 20px;
background-color: #fff;
}
.speaker .image {
float: left;
margin-right: 15px;
}
.speaker .image > img {
border-radius: 60px;
}
.speaker .inner {
overflow: hidden;
}
…
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No content
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.book {
overflow: hidden; /* Clearfix */
padding: 20px;
background-color: #9DBCB8;
color: #FFF;
}
.book .cover {
float: left;
margin-right: 20px;
}
.book .inner {
overflow: hidden;
}
.book .title {
...
}
...
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No content
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.event > a {
display: block;
}
.event .thumbnail {
float: left;
margin-right: 15px;
}
.event .inner {
overflow: hidden;
}
…
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No content
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No content
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...
...
...
- ...
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No content
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.book {
padding: 20px;
background-color: #9DBCB8;
color: #FFF;
}
.book__cover {
margin-right: 20px;
}
.book__title {
...
}
...
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OOCSS
Nicole Sullivan
@stubbornella
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OOCSS
SMACSS
BEM
MCSS
FLOCSS
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CSS
Components
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= encapsulation
Components
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Not perfect
Components
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…
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CSS…
...…
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No content
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#pickup .book__name {
color: #111;
font-size: 2em;
}
!
.book__name {
margin-bottom: 10px;
line-height: 1.3;
font-weight: bold;
font-size: 1.2em;
}
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☢
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No content
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#pickup .book__name {
color: #111;
font-size: 2em;
}
!
.book__name {
margin-bottom: 10px;
line-height: 1.3;
font-weight: bold;
font-size: 1.2em;
background-color: #333;
padding: 6px;
}
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No content
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#pickup .book__name {
color: #111;
font-size: 2em;
background-color: #FFF;
padding: 0;
}
!
.book__name {
margin-bottom: 10px;
line-height: 1.3;
font-weight: bold;
font-size: 1.2em;
background-color: #333;
padding: 6px;
}
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No content
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.book__name {
background-color: #333;
padding: 6px;
}
…
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⛼
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⛼
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Components
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Sharable
Maintainable
Easily-controlled
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Components
Web
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Web Components
Templates
Shadow DOM
HTML Imports
Custom Elements
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Templates
![]()
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Custom
Elements
!
!
!
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Custom
Elements
var element =
Object.create(
HTMLElement.prototype
);
document.registerElement(
'my-alert', {
prototype: element
}
);
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Shadow
DOM
// ΧελϜཁૉͷΠϯελϯε͕ੜ͞Εͨ࣌ʹ࣮ߦ͢Δ
element.createdCallback = function() {
var template =
document.querySelector('#my-media-
template');
!
// templateͷDocumentFragment͔ΒcontentΛऔಘ͢Δ
var content = template.content;
!
// Shadow RootʹcontentΛՃ͢ΔʢShadowDOMͷܗʣ
var shadowRoot =
this.createShadowRoot();
shadowRoot.appendChild(
document.importNode(content, true)
);
};
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Shadow
DOM
// ΧελϜཁૉͷΠϯελϯε͕ੜ͞Εͨ࣌ʹ࣮ߦ͢Δ
element.createdCallback = function() {
var template =
document.querySelector('#my-media-
template');
!
// templateͷDocumentFragment͔ΒcontentΛऔಘ͢Δ
var content = template.content;
!
// Shadow RootʹcontentΛՃ͢ΔʢShadowDOMͷܗʣ
var shadowRoot =
this.createShadowRoot();
shadowRoot.appendChild(
document.importNode(content, true)
);
};
= encapsulation
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HTML
Imports
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Web Components
Templates
Shadow DOM
HTML Imports
Custom Elements
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http://codepen.io/hiloki/full/obFui
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ઘਫ ᠳޗ
…
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No content
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ઘਫ ᠳޗ
…
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No content
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ϑϩϯτΤϯυ…
…
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୩ थ
...Slide 81
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ਿຊ ٢ষ
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ਿຊ ٢ষ
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୩ थ
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/*
…
*/
.media {
display: block;
overflow: hidden; /* Clearfix */
color: indianred;
}
❓
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/*
…
*/
.media {
display: block;
overflow: hidden; /* Clearfix */
color: indianred;
}
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/*
…
*/
.media {
display: block;
overflow: hidden; /* Clearfix */
color: indianred;
}
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/*
…
*/
.media {
display: block;
overflow: hidden; /* Clearfix */
color: skyblue;
}
❓
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/*
…
*/
.media {
display: block;
overflow: hidden; /* Clearfix */
color: skyblue;
}
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/*
…
*/
.media {
display: block;
overflow: hidden; /* Clearfix */
color: skyblue;
}
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::shadow
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/*
…
*/
.speaker::shadow .media {
display: block;
overflow: hidden; /* Clearfix */
background-image: url(orion.jpg);
background-size: cover;
}
❓
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/*
…
*/
.speaker::shadow .media {
display: block;
overflow: hidden; /* Clearfix */
background-image: url(orion.jpg);
background-size: cover;
}
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Shadow
DOM
= encapsulation
Custom
Elements
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Shadow
DOM
= encapsulation
Custom
Elements
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Shadow
DOM
= encapsulation
Custom
Elements
.media {
display: block;
overflow: hidden; /* Clearfix */
}
.media__image {
float: left;
margin-right: 10px;
}
.media__body {
overflow: hidden;
}
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Shadow
DOM
= encapsulation
Custom
Elements
!
!
!
!
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!
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Shadow
DOM
= encapsulation
Custom
Elements
!
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!
!
!
!
!
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!
!
.media {
display: table;
}
.media__image {
display: table-cell;
vertical-align: top;
padding-right: 10px;
}
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Shadow
DOM
= encapsulation
Custom
Elements
!
!
!
!
!
!
!
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!
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Shadow
DOM
= encapsulation
Custom
Elements
!
!
!
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!
.media {
display: flex;
align-items: flex-start;
}
.media__image {
margin-right: 10px;
}
.media__body {
flex: 1;
}
!
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Shadow
DOM
= encapsulation
Custom
Elements
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HTML5 Rocks
http://www.html5rocks.com/
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Polymer
http://www.polymer-project.org/
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X-Tag
http://www.x-tags.org/
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In future
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Polymer designer
https://github.com/Polymer/designer
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Designer
Builder
Component
Component
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Designer
Builder
Component
Component
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Component Designer.
Be a
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Thank you.
github.com/hiloki
twitter.com/hiloki
inkdesign.jp
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https://www.flickr.com/photos/premshree/3444104640/
https://www.flickr.com/photos/ltdemartinet/8331549172/
https://www.flickr.com/photos/horiavarlan/4839454263/
https://www.flickr.com/photos/drewmaughan/8209503226/
Photos: