css components

Beyond the CSS Architecture

ComponentsCSS

Front-end Engineer

Hiroki Tani

github.com/hiloki!" twitter.com/hiloki

inkdesign.jp

CSSMark-up

CSSMark-up

!Designer

➡

CSSMark-up

!Designer

➡

Engineer#

⬅

👎CSS

Easy.text { color: red; }

Hardtoo

#main .article { ... } #main .article .title { ... } #main .breaking .title { ... } #header #logo img { ... } #header li#logoTop { ... } #header li#logoTop:after { ... } .article-header .datetime span { ... } ul.member-list li.member a { ... } .widget p,.widget ul { ... } #sidebar .widget { ... } #sidebar li a.register{} body.landing #main section .photo { ... } #slider #slider-control > div { ... } #bannerList li div#rotate { ... }

CSS Architecture

http://codepen.io/hiloki/full/dnGeB

<div class="speaker"> <div class="image"> <img src="tani.jpg"> </div> <div class="inner"> <p class=“name”>…</p> <div class="biography"> <p>...</p> </div> </div> </div>

.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; } …

<div class="book"> <div class="cover"> <img src="book.jpg"> </div> <div class="inner"> <p class="title">...</p> <p class="info"> ... </p> <div class="intro"> <p>...</p> </div> <ul class="shop"> <li>...</li> </ul> </div> </div>

.book { overflow: hidden; /* Clearfix */ padding: 20px; background-color: #9DBCB8; color: #FFF; } .book .cover { float: left; margin-right: 20px; } .book .inner { overflow: hidden; } .book .title { ... } ...

<div class="event"> <a href="event.html"> <div class="thumbnail"> <img src="event.jpg"> </div> <div class="inner"> <p class="event__name">...</p> </div> </a> </div>

.event > a { display: block; } .event .thumbnail { float: left; margin-right: 15px; } .event .inner { overflow: hidden; } …

&

<div class="media speaker"> <div class="media__image image"> <img src="tani.jpg"> </div> <div class="media__body inner"> <p class="name">…</p> <div class="biography"> <p>...</p> </div> </div> </div>

/* Media */ .media { overflow: hidden; /* Clearfix */ } .media__image { float: left; margin-right: 15px; } .media__body { 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; } …

.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; } …

.book { overflow: hidden; /* Clearfix */ padding: 20px; background-color: #9DBCB8; color: #FFF; } .book .cover { float: left; margin-right: 20px; } .book .inner { overflow: hidden; } .book .title { ... } ...

.event > a { display: block; } .event .thumbnail { float: left; margin-right: 15px; } .event .inner { overflow: hidden; } …

'

<div class=“media book"> <div class=“media__image book__cover”> <img src="book.jpg"> </div> <div class=“media__body”> <p class="book__name">...</p> <p class="book__info"> ... </p> <div class="book__intro"> <p>...</p> </div> <ul class="book__shop"> <li>...</li> </ul> </div> </div>

.book { padding: 20px; background-color: #9DBCB8; color: #FFF; } .book__cover { margin-right: 20px; } .book__title { ... } ...

OOCSSNicole Sullivan@stubbornella

OOCSSSMACSSBEMMCSSFLOCSS

CSSComponents

= encapsulationComponents

Not perfectComponents

<div class="book"> <div class="book__cover"> <p class=“book__name"> … </p> </div> </div>

<div id="pickup"> <div class="book"> <div class="book__cover"> <p class="book__name"> CSS…</p>... </div> </div> </div>

<div class="book"> <div class="book__cover"> <p class=“book__name"> … </p> </div> </div>

#pickup .book__name { color: #111; font-size: 2em; } !.book__name { margin-bottom: 10px; line-height: 1.3; font-weight: bold; font-size: 1.2em; }

☢

#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; }

#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; }

<style scoped> )

<div><!-- Scope --> <style scoped> .book__name { background-color: #333; padding: 6px; } </style> <div class=“media book"> <div class=“media__body”> <p class=“book__name”> … </p> </div> </div> </div>

<style scoped> ⛼

<style scoped> ⛼

Components

Sharable

+

,

-

Maintainable

Easily-controlled

ComponentsWeb

Web ComponentsTemplates

Shadow DOMHTML Imports

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Custom Elements

Templates

<template id="my-media-template"> <div class="media"> <div class="media__image"> <img> </div> <div class="media__body"> <content></content> </div> </div> </template>

Custom Elements

<google-map></google-map> !<x-calendar today></x-calendar> !<button is="like-button"></button> !<my-media src="tani.jpg" width="120" height="120">

Custom Elements

var element = Object.create( HTMLElement.prototype ); document.registerElement( 'my-alert', { prototype: element } );

Shadow DOM

// カスタム要素のインスタンスが生成された時に実行する

element.createdCallback = function() { var template = document.querySelector('#my-media-template'); !// templateのDocumentFragmentからcontentを取得する

var content = template.content; !// Shadow Rootにcontentを追加する（ShadowDOMの形成）

var shadowRoot = this.createShadowRoot(); shadowRoot.appendChild( document.importNode(content, true) ); };

Shadow DOM

// カスタム要素のインスタンスが生成された時に実行する

element.createdCallback = function() { var template = document.querySelector('#my-media-template'); !// templateのDocumentFragmentからcontentを取得する

var content = template.content; !// Shadow Rootにcontentを追加する（ShadowDOMの形成）

var shadowRoot = this.createShadowRoot(); shadowRoot.appendChild( document.importNode(content, true) ); };

= encapsulation

HTML Imports

<head> <link rel="import" href=“components/my-media.html"> </head>

Web Components

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Templates

Shadow DOMHTML Imports

Custom Elements

http://codepen.io/hiloki/full/obFui

<my-media src=“sensui.jpg" width=“120" height=“120" class="speaker"> <p class=“speaker__name"> 泉水 翔吾

</p> <div class="speaker__bio"> <p>…</p> </div> </my-media>

<my-media src="sensui.jpg" width="120" height="120" class="speaker"> <p class=“speaker__name"> 泉水 翔吾

</p> <div class="speaker__bio"> <p>…</p> </div> </my-media>

<my-media src=“book.jpg" width=“100" height=“100" class="book"> <p class=“book__name"> フロントエンド…

</p> <div class=“book__info”> <p>…</p> </div> … </my-media>

.

<div class="media speaker"> <divclass=“media__image speaker__image”> <img src="tani.jpg" width="120"> </div> <div class="media__body"> <p class=“speaker__name"> 谷 拓樹

</p> ... </div> </div>

<my-media src=“sugimoto.jpg" width=“120" class="speaker"> <p class=“speaker__name"> 杉本 吉章

</p> ... </my-media>

<my-media src="sugimoto.jpg" width="120" class="speaker"> <div class="media"> <div class=“media__image"> <img src="tani.jpg" width="120"> </div> <div class="media__body"> <p class="speaker__name">杉本

吉章</p>

... </div> </div> </my-media>

<div class="media speaker"> <div class="media__image speaker__image"> <img src="tani.jpg" width="120"> </div> <div class="media__body"> <p class="speaker__name">谷 拓樹</p> ... </div> </div>

/* <head> <style>…</style> </head> */ .media { display: block; overflow: hidden; /* Clearfix */ color: indianred; }

❓

/* <head> <style>…</style> </head> */ .media { display: block; overflow: hidden; /* Clearfix */ color: indianred; }

/* <head> <style>…</style> </head> */ .media { display: block; overflow: hidden; /* Clearfix */ color: indianred; }

/* <template> <style>…</style> </template> */ .media { display: block; overflow: hidden; /* Clearfix */ color: skyblue; }

❓

/* <template> <style>…</style> </template> */ .media { display: block; overflow: hidden; /* Clearfix */ color: skyblue; }

/* <template> <style>…</style> </template> */ .media { display: block; overflow: hidden; /* Clearfix */ color: skyblue; }

::shadow 👻

/* <head> <style>…</style> </head> */ .speaker::shadow .media { display: block; overflow: hidden; /* Clearfix */ background-image: url(orion.jpg); background-size: cover; }

❓

/* <head> <style>…</style> </head> */ .speaker::shadow .media { display: block; overflow: hidden; /* Clearfix */ background-image: url(orion.jpg); background-size: cover; }

Shadow DOM= encapsulation

Custom Elements

<my-media></my-media>

Shadow DOM= encapsulation

Custom Elements

Shadow DOM= encapsulation

Custom Elements

<my-media> <style> .media { display: block; overflow: hidden; /* Clearfix */ } .media__image { float: left; margin-right: 10px; } .media__body { overflow: hidden; } </style> <div class="media"> <div class=“media__image"></div> <div class="media__body"></div> </div> </my-media>

Shadow DOM= encapsulation

Custom Elements

<my-media> !!!!!!!!!!!!!!!! </my-media>

Shadow DOM= encapsulation

Custom Elements

<my-media> !!!!!!!!!!!!!!!! </my-media>

! <style> .media { display: table; } .media__image { display: table-cell; vertical-align: top; padding-right: 10px; } </style> <div class="media"> <div class=“media__image"></div> <div class="media__body"></div> </div>

Shadow DOM= encapsulation

Custom Elements

<my-media> !!!!!!!!!!!!!!!! </my-media>

Shadow DOM= encapsulation

Custom Elements

<my-media> !!!!!!!!!!!!!!!! </my-media>

! <style> .media { display: flex; align-items: flex-start; } .media__image { margin-right: 10px; } .media__body { flex: 1; } </style> <div class="media"> <div class=“media__image"></div> <div class="media__body"></div> </div> !

Shadow DOM= encapsulation

Custom Elements

<my-media></my-media>

HTML5 Rockshttp://www.html5rocks.com/

Polymerhttp://www.polymer-project.org/

X-Taghttp://www.x-tags.org/

In future

Polymer designerhttps://github.com/Polymer/designer

Designer

Builder

Component

Component

💎 Designer

Builder

Component

Component

Component Designer.Be a

Thank you.github.com/hiloki!

" twitter.com/hiloki

inkdesign.jp

💐

https://www.flickr.com/photos/premshree/3444104640/

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https://www.flickr.com/photos/ltdemartinet/8331549172/

https://www.flickr.com/photos/horiavarlan/4839454263/

https://www.flickr.com/photos/drewmaughan/8209503226/

Photos: