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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Class 3 ~ HTML/CSS ~ Girl Develop It</title>
<meta name="description" content="This is curriculum for the GDI RDU intro to web series. It was developed from the official Girl Develop It Core HTML/CSS curriculum">
<meta name="author" content="Girl Develop It">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<link rel="stylesheet" href="css/reveal.css">
<link rel="stylesheet" href="css/theme/simple.css" id="theme">
<link rel="stylesheet" href="css/custom.css">
<!-- For syntax highlighting -->
<!-- light editor--><link rel="stylesheet" href="lib/css/light.css">
<!-- dark editor<link rel="stylesheet" href="lib/css/dark.css"> -->
<!-- <link rel="stylesheet" href="lib/css/zenburn.css"> -->
<link rel="stylesheet" href="plugin/accessibility-helper/css/accessibility-helper.css">
<!-- If the query includes 'print-pdf', include the PDF print sheet -->
<script>
if (window.location.search.match(/print-pdf/gi)) {
var link = document.createElement("link");
link.rel = "stylesheet";
link.type = "text/css";
link.href = "css/print/pdf.css";
document.getElementsByTagName("head")[0].appendChild(link);
}
</script>
<!-- If use the PDF print sheet so students can print slides-->
<link rel="stylesheet" href="css/print/pdf.css" type="text/css" media="print">
<link rel="icon" type="image/x-icon" href="favicon.ico" />
<!--[if lt IE 9]>
<script src="lib/js/html5shiv.js"></script>
<![endif]-->
</head>
<body>
<div class="reveal">
<div class="slides">
<section>
<img src="img/circle-gdi-logo.png" alt="GDI Logo" class="noborder">
<h1>Intro to HTML/CSS</h1>
<h2>Class 3</h2>
</section>
<!-- Quiz 1-->
<section>
<h3>Quiz Part 1</h3>
<p>Within your <html></html> tags, which are the two nested tags required for a website?</p>
<div class="fragment">
<pre><code class="html xml"><html>
<head>
</head>
<body>
</body>
</html>
</code></pre>
</div>
</section>
<!-- Quiz 2-->
<section>
<h3>Quiz Part 2</h3>
<p class="fragment visible">What does a complete paragraph element look like?</p>
<div class="fragment">
<pre><code class="html xml"><p>This is a paragraph</p>
</code></pre>
</div>
</section>
<!-- Quiz 3-->
<section>
<h3>Quiz Part 3</h3>
<p class="fragment">What does a complete link (anchor) element look like? Hint: needs an 'href'.</p>
<div class="fragment">
<pre><code class="html xml"><a href="http://google.com/">This goes to google</a>
</code></pre>
</div>
</section>
<!-- Inline vs. block-->
<section>
<h3>Inline vs Block</h3>
<div class="halfblock">
<p>So far, we have mostly seen <strong>"block"</strong> elements. They appear on the next line, like paragraphs.</p>
<p>There are also <strong>"inline"</strong> elements. They appear on the same line that they are written on.</p>
</div>
<div class="halfblock">
<img src="img/example-blockinline.png" alt="example of inline and block elements" />
</div>
<div class="clear"></div>
</section>
<section>
<h3>Block & Inline Elements</h3>
<ul>
<li>CSS divides HTML into two types: inline and block.</li>
<li>After block elements, browsers render a new line.</li>
<li><strong>Inline elements:</strong> img, a, br, em, strong</li>
<li><strong>Block elements:</strong> p, h1, ul, li, almost everything else</li>
</ul>
</section>
<!-- Divs -->
<section>
<h3>Element: Div</h3>
<ul>
<li>Block level element. Each new div is rendered on a new line.</li>
<li>A division, or section of content within an HTML page.</li>
<li>Used to group elements to format them with CSS.</li>
<li>Apply IDs and Classes to divs to control their styles with CSS.</li>
</ul>
</section>
<section>
<h3>Div Examples</h3>
<pre><code class="html"><div>
<p>Content</p>
<p>Content</p>
</div>
</code></pre>
<pre><code class="html"><div id="header">
<h1>Main Heading</h1>
</div>
</code></pre>
<pre><code class="html"><div class="sub-content">
<p>Some more content</p>
</div>
</code></pre>
</section>
<section>
<h3>Grouping elements with div</h3>
<ul>
<li>The div tag is used everywhere to group elements together into sections.</li>
<li>You can wrap groups of elements in a div to style them differently.</li>
</ul>
</section>
<section>
<h3>Grouping elements with div, cont.</h3>
<pre><code class="css">.align-right {
text-align: right;
color: purple;
font-weight: bold;
}
</code></pre>
<pre><code class="html"><div class="align-right">
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit</p>
<p>Sed do eiusmod tempor incididunt ut labore et dolore.</p>
</div>
<p>Magna aliqua. Ut enim ad minim veniam.</p>
<p>Quis nostrud exercitation ullamco.</p>
</code></pre>
<div style="text-align:right; font-weight:bold; font-size:70%; color:purple;">
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit</p>
<p>Sed do eiusmod tempor incididunt ut labore et dolore.</p>
</div>
<div style="font-size:70%;">
<p>Magna aliqua. Ut enim ad minim veniam.</p>
<p>Quis nostrud exercitation ullamco.</p>
</div>
</section>
<section>
<h3>HTML5</h3>
<p class="left-align">HTML5 offers new elements for better document structure and semantics</p>
<p class="left-align">Some of the most commonly used new tags include:</p>
<pre><code class ="html"><header></header>
<nav></nav>
<article></article>
<section></section>
<main></main>
<footer></footer>
</code></pre>
<p>A full list can be found <a href="http://www.tutorialspoint.com/html5/html5_new_tags.htm">here</a>.</p>
</section>
<section>
<h3>Let's Develop It</h3>
<p>Let's create a site using divs to separate content into different sections on our page.</p>
<p>Create a header, content area, sidebar, and a footer.</p>
</section>
<section>
<h3>Sample Code</h3>
<p>A page divided into divs might look like this:</p>
<pre><code class="html"><!doctype html>
<html>
<head>
<title>Sample Page</title>
</head>
<body>
<div id="header">
<h1>My Page Title</h1>
</div>
<div id="content">
<p>The main content</p>
</div>
<div id="sidebar">
<p>Some stuff in a sidebar</p>
</div>
<div id="footer">
<p>Copyright me</p>
</div>
</body>
</html>
</code></pre>
</section>
<section>
<h3>Sample Code: HTML5</h3>
<p>A page divided using HTML 5 elements might look like this:</p>
<pre><code class="html"><!doctype html>
<html>
<head>
<title>Sample Page</title>
</head>
<body>
<header>
<h1>My Page Title</h1>
</header>
<main>
<p>The main content</p>
</main>
<aside>
<p>Some stuff in a sidebar</p>
</aside>
<footer>
<p>Copyright me</p>
</footer>
</body>
</html>
</code></pre>
</section>
<!-- Span -->
<section>
<h3>Element: Span</h3>
<ul>
<li>Inline element. Each new span is rendered next to each other & only wraps when it reaches the edge of the containing element.</li>
<li>Can be used to apply styles to text inline so as not to break the flow of content.</li>
</ul>
</section>
<section>
<h3>Span</h3>
<p>Span is used to apply a specific style inline</p>
<pre><code class="css">.highlight {
color: teal;
}
</code></pre>
<pre><code class="html"><p>Paragraph with <span class="highlight">teal</span> text.</p>
</code></pre>
<p>Paragraph with <span style="color:teal;">teal</span> text.</p>
</section>
<!-- Exercise-->
<section>
<h3>Let's Develop It</h3>
<p>Let's add some spans to our content to help highlight some text. </p>
</section>
<!-- Pseudo class-->
<section>
<h3>Pseudo-classes</h3>
<div class="halfblock">
<p>Changing the format of a link when you hover over it is accomplished by using pseudo-classes.</p>
<p>CSS pseudo-classes are used to add special effects to some selectors.</p>
</div>
<div class="halfblock">
<p>Syntax:</p>
<pre><code class="css">selector:pseudo-class {
property: value;
}
</code></pre>
<p>Example:</p>
<pre><code class="css">a:link {
text-decoration: none;
}
</code></pre>
</div>
</section>
<!-- Pseudo class-->
<section>
<h3>Pseudo-classes</h3>
<pre><code class="css">a:link {color:#FF0000;} /* unvisited link */
a:visited {color:#00FF00;} /* visited link */
a:hover, a:focus {color:#FF00FF;} /* mouse over or select with keyboard*/
a:active {color:#0000FF;} /* selected link */
</code></pre>
<p>a:hover <strong>MUST</strong> come after a:link and a:visited in the CSS definition to be effective!</p>
<p>a:active <strong>MUST</strong> come after a:hover in the CSS definition to be effective!</p>
</section>
<!-- Exercise-->
<section>
<h3>Let's Develop It</h3>
<p>Add pseudo classes to your links</p>
</section>
<!-- Box model-->
<section>
<h3>The Box Model</h3>
<img src="img/boxpadding.jpg" alt="Small box surrounded by packing peanuts in a larger box"/>
<p class="credit">Photo credit: <a href="http://www.flickr.com/photos/dchallender/76537016/">dchallender</a> <a href="http://creativecommons.org/licenses/by-nc-sa/2.0/">cc</a>
</section>
<section>
<h3>Box Model</h3>
<img src="img/box-model.png" alt="Graphic illustrating box model"/>
</section>
<!-- Padding -->
<section>
<h3>Padding</h3>
<p>Space between the border and the content</p>
<img src="img/box-model-padding.png" alt="Graphic illustrating box model, padding highlighted"/>
</section>
<section>
<h3>Padding</h3>
<p>Notice that the padding adds to the total width of the box.</p>
<img src="img/box-model-padding.png" alt="Graphic illustrating box model, padding highlighted"/>
</section>
<section>
<h3>Padding</h3>
<p>15 pixels on all sides</p>
<pre><code class="css">padding: 15px;</code></pre>
<p>10 pixels on top only</p>
<pre><code class="css">padding-top: 10px;</code></pre>
<p>10 on top, 5 on right, 3 on bottom, 5 on left</p>
<pre><code class="css">padding: 10px 5px 3px 5px;</code></pre>
</section>
<section>
<h3>Padding</h3>
<p>Four values<p>
<pre><code class="css">padding: top right bottom left;</code></pre>
<p>Two values</p>
<pre><code class="css">padding: top/bottom right/left;</code></pre>
<p>One value</p>
<pre><code class="css">padding: all;</code></pre>
</section>
<section>
<h3>Padding</h3>
<pre><code class="css">padding: 10px 20px 30px 40px;</code></pre>
<img src="img/box-model-padding2.png" alt="Graphic illustrating box model, with uneven padding"/>
</section>
<!-- Border-->
<section>
<h3>Border</h3>
<p>The edge around the box.</p>
<img src="img/box-model-border.png" alt="Graphic illustrating box model, border highlighted">
</section>
<section>
<h3>Border</h3>
<p>Borders are specified as "thickness, style, color."</p>
<p>A solid red border</p>
<pre><code class="css">border: 1px solid #ff0000;</code></pre>
<p>A thick dotted black top border</p>
<pre><code class="css">border-top: 4px dotted #000000;</code></pre>
<p>Two different border styles</p>
<pre><code class="css">border-top: 1px solid #ff0000;
border-bottom: 4px dotted #000000;
</code></pre>
</section>
<section>
<h3>Border - Other Properties</h3>
<pre><code class="css">border-width: 10px;
border-style: dashed;
border-color: #666666;
</code></pre>
<p>You can specify each property separately, or all three together.</p>
</section>
<!-- Margin -->
<section>
<h3>Margin</h3>
<p>The transparent area around the box that separates it from other elements.</p>
<img src="img/box-model-margin.png" alt="Graphic illustrating box model, margin highlighted"/>
</section>
<section>
<h3>Margin</h3>
<p>15 pixels on all sides</p>
<pre><code class="css">margin: 15px;</code></pre>
<p>10 on top, 5 on right, 3 on bottom, 5 on left</p>
<pre><code class="css">margin: 10px 5px 3px 5px;</code></pre>
<p>10 pixels on top</p>
<pre><code class="css">margin-top: 10px;</code></pre>
</section>
<section>
<h3>Auto Margin</h3>
<p>If a margin is set to auto on a box that has width, it will take up as much space as possible.</p>
<p>CENTERED</p>
<pre><code class="css">margin: auto;
width: 300px;
</code></pre>
<p>FLUSH-RIGHT</p>
<pre><code class="css">margin-left: auto;
margin-right: 5px;
width: 300px;
</code></pre>
</section>
<section>
<h3>Wrappers</h3>
<p>Wrappers are a good way to center content if the screen width is wider than your content.</p>
<pre><code class="css">div.wrapper {
width: 100%;
max-width: 1400px;
margin: 0 auto;
}
</code></pre>
</section>
<!-- Exercise -->
<section>
<h3>Let's Develop It!</h3>
<p>Let's add some padding, borders, and margins to our divs.</p>
<p>Let's center our entire document in the browser.</p>
</section>
<!-- Sizing -->
<!-- Width-->
<section>
<h3>Property: Width</h3>
<p>Sets the width of an element.</p>
<p>Does not include padding or borders. Remember to add these to the width.</p>
<pre><code class="css">div#sidebar {
width: 31%;
padding: 1%;
border: none; /*Total width is 33%*/
}
</code></pre>
</section>
<!-- height-->
<section>
<h3>Property: Height</h3>
<p>Sets the height of an element.</p>
<p>Does not include padding or borders. Remember to add these to the height.</p>
<pre><code class="css">p.alert {
height: 50px;
padding: 5px;
border: 2px solid red; /*Total height is 64px*/
}
</code></pre>
</section>
<!-- Exercise -->
<section>
<h3>Let's Develop It!</h3>
<div>
<p>Add a width & height to our divs.</p>
<p>Use IDs to target each div with CSS</p>
</div>
</section>
<section>
<h2>Questions?</h2>
</section>
</div><!-- Close slides -->
<div>
<footer>
<div class="copyright">
HTML/CSS ~ Girl Develop It
<a rel="license" href="http://creativecommons.org/licenses/by-nc/3.0/deed.en_US"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-nc/3.0/80x15.png" /></a>
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