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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=1024, user-scalable=no">
<title>Your deck.js Presentation</title>
<!-- Required stylesheet -->
<link rel="stylesheet" href="core/deck.core.css">
<!-- Extension CSS files go here. Remove or add as needed. -->
<link rel="stylesheet" media="screen" href="extensions/goto/deck.goto.css">
<link rel="stylesheet" media="screen" href="extensions/menu/deck.menu.css">
<link rel="stylesheet" media="screen" href="extensions/navigation/deck.navigation.css">
<link rel="stylesheet" media="screen" href="extensions/status/deck.status.css">
<!-- <link rel="stylesheet" media="screen" href="extensions/scale/deck.scale.css"> -->
<link rel="stylesheet" href="css/app.css">
<!-- Style theme. More available in /themes/style/ or create your own. -->
<!--<link rel="stylesheet" media="screen" href="themes/style/web-2.0.css">-->
<!-- Transition theme. More available in /themes/transition/ or create your own. -->
<!--<link rel="stylesheet" media="screen" href="themes/transition/horizontal-slide.css">-->
<!-- Basic black and white print styles -->
<link rel="stylesheet" media="print" href="core/print.css">
<script src="//use.typekit.net/zsm3oju.js"></script>
<script>try{Typekit.load();}catch(e){}</script>
<!-- Required Modernizr file -->
<script src="modernizr.custom.js"></script>
</head>
<body>
<div class="deck-container">
<!-- Begin slides. Just make elements with a class of slide. -->
<section class="slide" id="who-am-i">
<h1>Samuel Allen</h1>
<div class="details-wrapper">
<div class="personal-details">
<h2>Senior Interactive Developer - Isobar, Chicago</h2>
<h3>Email</h3>
<p><a href="mailto:sam.allen@isobar.com">sam.allen@isobar.com</a></p>
<h3>Github</h3>
<p><a href="https://github.com/dehuszar">dehuszar</a></p>
<h3>Twitter</h3>
<p><a href="https://twitter.com/dehuszar">@dehuszar</a></p>
<h3>LinkedIn</h3>
<p><a href="https://www.linkedin.com/in/dehuszar">https://www.linkedin.com/in/dehuszar</a></p>
</div>
<figure>
<img src="images/sam-allen.jpg" />
</figure>
</div>
</section>
<section class="slide" class="talk-structure">
<h1>Semantic Remapping with CSS Processors</h1>
<ul>
<li class="slide">What is it?</li>
<li class="slide">What do we have now?</li>
<li class="slide">So why is this still hard then?</li>
<li class="slide">How can we do better?</li>
</ul>
</section>
<section class="slide" id="tldr-what-is-it">
<h1>What is it, and why should I care?</h1>
<dl>
<dt>Semantic Remapping</dt>
<dd class="slide">A way of organizing & applying reusable visual patterns <span class="slide">to semantically appropriate markup and classes that <strong>describe the content</strong></span><span class="slide">, not the content's desired visual outcome</span></dd>
</dl>
<div class="so-what-wrapper">
<div class="details">
<h2 class="slide">And that gets us what?</h2>
<ul>
<li class="slide">Leaner, more focused, and more reusable markup</li>
<li class="slide">Cleaner, more modular, and more maintainable stylesheets</li>
<li class="slide">Lower file-sizes</li>
</ul>
</div>
<figure class="slide">
<img src="http://i1.kym-cdn.com/entries/icons/original/000/000/213/robocop-unicorn.jpg" />
</figure>
</div>
</section>
<section id="before-teaser" class="slide">
<p>We can get our code to go from this...</p>
<figure class="code-screenshot">
<img src="images/before-code.png" />
</figure>
</section>
<section id="after-teaser" class="slide">
<p>...to this <span class="slide"><em>without having to stop using your existing tools</em></span></p>
<figure class="code-screenshot">
<img src="images/after-code.png" />
</figure>
</section>
<section class="slide" id="what-do-we-have">
<h1>What do we have now?</h1>
<h2 class="slide">A LOT!!!</h2>
<ul>
<li class="slide" id="we-have-style-guides">
<h3>Style-Guide Systems</h3>
<ul>
<li>Object Oriented CSS (OOCSS)</li>
<li>Scalable Modular Architecture for CSS (SMACSS)</li>
<li>Block, Element, Modular (BEM)</li>
<li>Atomic CSS (ACSS)</li>
</ul>
</li>
<li class="slide" id="we-have-pre-proc">
<h3>Pre-Processors</h3>
<ul>
<li>LESS</li>
<li>SASS/SCSS</li>
<li>Stylus</li>
</ul>
</li>
<li class="slide" id="we-have-post-proc">
<h3>Post-Processors</h3>
<ul>
<li>PostCSS</li>
<li>Autoprefixer</li>
<li>Rework</li>
<li>Lots of new entrants every day</li>
</ul>
</li>
<li class="slide" id="we-have-frameworks">
<h3>Frameworks</h3>
<ul>
<li>Bootstrap</li>
<li>Foundation</li>
<li>Pure</li>
</ul>
</li>
</ul>
</section>
<section class="slide" id="details-style-guides">
<h1>Style-Guide Systems</h1>
<h2>Really good at:</h2>
<ul>
<li class="slide">creating a visual language for reusable layout patterns</li>
<li class="slide">keeping layout patterns organized, and modular</li>
<li class="slide">...but</li>
</ul>
<pre class="slide">
.container .row .column-md-12 .btn-group .btn.btn-primary {
content: "What were we talking about again?";
}
</pre>
<div class="details">
<ul>
<li class="slide">requires use of non-semantic "utility classes"</li>
<li class="slide">lowers markup reusability</li>
<li class="slide">violates the Separation of Concerns principle</li>
<li class="slide">leads to increasingly higher specificity overrides</li>
</ul>
<figure class="slide">
<img src="https://i.imgflip.com/ieu04.jpg" title="made at imgflip.com"/>
</figure>
</div>
</section>
<section class="slide" id="details-pre-proc">
<h1>Pre-Processors</h1>
<h2>Pre-Processors are AWESOME!! <small class="slide">(until they're not)</small></h2>
<p class="slide">What's good about them is what's bad about them</p>
<ul>
<li class="slide">Brings programmability to CSS</li>
<li class="slide">Makes them easy to abuse/misuse</li>
<li class="slide">misuse can lead to, bloat, fragile chains of inheritance, and redundancy in the css output</li>
</ul>
<pre class="slide">
.selector-with-common-styling {
background: red;
color: blue;
display: block;
}
.other-selector-that-needs-same-styles {
&:extend(.selector-with-common-styles);
}
</pre>
</section>
<section class="slide" id="details-post-proc">
<h1>Post-Processors</h1>
<h2>They're just like pre-processors, only later!</h2>
<div class="details">
<ul>
<li class="slide">They have an advantage of not needing a non-native CSS source language, but...</li>
<li class="slide">But supporting mixins, variables, and extends means 'native' css code is invalid without processor</li>
<li class="slide">May be unclear to the next developer</li>
<li class="slide">Similarly powerful, but not yet as stable or robust</li>
</ul>
<figure>
<img src="https://i.imgflip.com/ietdi.jpg" title="made at imgflip.com"/>
</figure>
</div>
</section>
<section class="slide" id="analogy-pre-proc">
<p>CSS Processors are like a car. <span class="slide">You can cover great distances very quickly</span><span id="car-on-fire" class="slide">, but in using them you increase your chances of being involved in an accident.</span> <span class="slide">Especially when under time pressure, or trying to navigate with poor directions.</span></p>
<figure>
<img class="driving" src="http://www.carmagblog.co.za/wp-content/uploads/2012/07/R40-001.jpg" />
<img class="crashed" src="http://www.shezadmalik.com/docs/dallas_car_accident_attorney.jpg" />
</figure>
</section>
<section class="slide" id="details-frameworks">
<h1>Frameworks</h1>
<h2>Frameworks are AWESOME!!! <small class="slide">(until they're not)</small></h2>
<ul>
<li class="slide">easy for getting up and running fast</li>
<li class="slide">but hard to maintain</li>
<li class="slide">utility classes pile up and lead to a specificity arms race</li>
<li class="slide">don't always make sense at certain breakpoints of responsive layouts</li>
<li class="slide">design changes lead to breakages and cruft</li>
<li class="slide">often force you to choose between significant refactors or ugly ugly patches</li>
</ul>
</section>
<section class="slide" id="bad-examples">
<p>...like these:</p>
<div class="details">
<pre class="slide">
@media (max-width: 767px) {
#sidebar {
width: 100%;
}
}
</pre>
<pre class="slide">
.hide {
display: block;
}
</pre>
<pre class="slide">
.pull-left {
float: right !important;
}
</pre>
<figure class="slide">
<img src="https://imgflip.com/readImage?iid=1509839" />
</figure>
</div>
</section>
<section class="slide" id="if-only">
<figure>
<img src="https://i.imgflip.com/iettf.jpg" title="made at imgflip.com"/>
</figure>
</section>
<section class="slide" id="tldr-solutions">
<h1>Solutions</h1>
<ul>
<li class="slide">Semantic Classing</li>
<li class="slide">Divide style sheets into meaningful, modular layout components</li>
<li class="slide">Use <strong>extend</strong> to assign visually defined classes to semantically defined classes</li>
</ul>
</section>
<section class="slide" id="sem-classing">
<h1>Semantic Classing</h1>
<!-- show WikiPedia def of Semantic HTML -->
<blockquote>
<p><strong>Semantic HTML</strong> is the use of HTML markup to reinforce the semantics, or meaning, of the information in webpages rather than merely to define its presentation or look. Semantic HTML is processed by regular web browsers as well as by many other user agents. CSS is used to suggest its presentation to human users.</p>
</blockquote>
<!-- show some examples -->
<code>
<div class="content-wrapper"> <br>
<section class="news-items" role="main"><br>
<article id="news-item-436" class="news-item"> <br>
<header> <br>
<h1>News Item Title</h1> <br>
<h2>By line</h2> <br>
</header> <br>
<div class="article-body"> <br>
<p>[...]</p> <br>
</div> <br>
</article> <br >
</section> <br>
<aside role="complementary"> <br>
<h3>Author Name</h3> <br>
<ul class="articles-by-author"> <br>
[...] <br>
</ul> <br>
<ul class="related-articles"> <br>
[...] <br>
</ul> <br>
</aside> <br>
</div>
</code>
</section>
<section class="slide" id="layout-objects">
<h1>Divide style sheets into meaningful layout pieces</h1>
<!-- show WikiPedia def -->
<!-- show some examples -->
<pre>
.layout-2-col-3-1 {
display: flex;
// mobile-first layout
[role="main"],
[role="complementary"],
[role="complementary"] > ul {
display: block;
width: 100%;
}
// tablet/portrait layout
@media (min-width: 960px) {
[role="complementary"] > ul {
flex: 1 auto;
}
// tablet/landscape, desktop layout
@media (min-width: 960px) {
// introduce 2-col layout
[role="main"] {
flex: 3 auto;
}
[role="complementary"] {
flex: 1 auto;
}
}
}
</pre>
</section>
<section class="slide" id="extending">
<h1>Semantic Remapping with @extend</h1>
<!-- show a quick example with Bootstrap & LESS -->
<!-- walk through using @import / placeholders -->
<pre>
.content-wrapper {
&:extend(.layout-2-col-3-1 all);
}
</pre>
<h2 class="slide">THAT'S IT!!! <small class="slide"><em>(...sort of)</em></small></h2>
</section>
<section class="slide" id="demo">
<h1>Let's take a closer look</h1>
<!-- layout demo -->
<!-- show before / after file-sizes -->
<div id="pure-extend-demo">
<p><a href="http://dehuszar.github.io/presentation-semantic-remapping/demos/layout-comparisons/" target="_blank">Simple CSS Layout Demo</a><small> (<a href="https://github.com/dehuszar/presentation-semantic-remapping/tree/master/demos/layout-comparisons" target="_blank">source</a>)</small></p>
<p><a href="http://dehuszar.github.io/presentation-semantic-remapping/demos/layout-comparisons/processed.html" target="_blank">Simple Pure Extend Layout Demo</a></p>
<p><a href="http://dehuszar.github.io/presentation-semantic-remapping/demos/processor-comparisons/less/nested.html" target="_blank">Nested Extend Demo with Pure & LESS</a><small> (<a href="https://github.com/dehuszar/presentation-semantic-remapping/tree/master/demos/processor-comparisons" target="_blank">source</a>)</small></p>
<p><a href="http://dehuszar.github.io/presentation-semantic-remapping/demos/processor-comparisons/stylus/nested.html" target="_blank">Nested Extend Demo with Pure & Stylus</a></p>
</div>
<div class="slide">
<p><a href="http://refresh-sf.com/" target="_blank">File Size Demo</a></p>
</section>
<section class="slide" id="placeholdernater">
<h1>Placeholdernater</h1>
<p><a href="https://github.com/dehuszar/placeholdernater" target="_blank">Github repo</a></p>
</section>
<section class="slide" id="questions">
<h1>Questions?</h1>
</section>
<!-- End slides. -->
<!-- Begin extension snippets. Add or remove as needed. -->
<!-- deck.navigation snippet -->
<div aria-role="navigation">
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<p class="deck-status" aria-role="status">
<span class="deck-status-current"></span>
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</p>
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<form action="." method="get" class="goto-form">
<label for="goto-slide">Go to slide:</label>
<input type="text" name="slidenum" id="goto-slide" list="goto-datalist">
<datalist id="goto-datalist"></datalist>
<input type="submit" value="Go">
</form>
<!-- End extension snippets. -->
</div>
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<script src="jquery.min.js"></script>
<script src="core/deck.core.js"></script>
<!-- Extension JS files. Add or remove as needed. -->
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