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diff --git a/build/better-box-shadows/index.html b/build/better-box-shadows/index.html new file mode 100644 index 0000000..cfca3d3 --- /dev/null +++ b/build/better-box-shadows/index.html @@ -0,0 +1,160 @@ +<!doctype html> +<html lang="en" id="top"> +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <link rel="icon" href="data:,"> + <title>Better Box Shadows</title> + <link href="https://bt.ht/atom.xml" type="application/atom+xml" rel="alternate" title="Atom feed for blog posts" /> + <style>*{box-sizing:border-box;}body{font-family:sans-serif;margin:0 auto;max-width:650px;padding:1rem;}img{max-width:100%;}pre{overflow:auto;}table{text-align:left;width:100%;}</style> +</head> + +<nav> + <a href="#menu">Menu ↓</a> +</nav> + +<main> +<h1>Better Box Shadows</h1> +<p>2019-01-08</p> +<p><style> + .message { + position: relative; + z-index: 1; + } + .box-container, + .box-container-depth { + background: white; + box-shadow: 0 4px 8px rgba(0,0,0,0.3); + border: 1px solid #eee; + border-radius: 10px; + margin: 2rem auto; + padding: 10px; + position: relative; + height: 200px; + width: 250px; + } + .box-container-depth { box-shadow: none; } + .box-container-depth .box-container-depth-inner { + bottom: 0; + box-shadow: 0 4px 12px rgba(0,0,0,0.3); + content:''; + position: absolute; + width: 94%; + height: 94%; + left: 3%; + z-index: -1; + } + .box-container-depth-inner.blur { + filter: blur(6px); + } +</style></p> +<p>Box shadow on <abbr title="hypertext markup language">HTML</abbr> elements has been widely supported across most browsers for a while now, but I find the default options don't allow for much visual manipulation of the shadows in general.</p> +<p>Let's take a look at a default configuration of <code>box-shadow</code>:</p> +<pre><code>.box-container { + box-shadow: 0 4px 8px rgba(0,0,0,0.3); +} +</code></pre> +<p>In the example above the first property number is the origin of the <em>x-axis</em>, the second number is the origin of the <em>y-axis</em> and the third is the amount of <em>blur</em>.</p> +<p>We should also add some minimal styling to cleanup the <code>.box-container</code> a little bit for our example:</p> +<pre><code><div class="box-container"></div> +</code></pre> +<pre><code>.box-container { + box-shadow: 0 4px 8px rgba(0,0,0,0.3); + /* Styles to make it less ugly */ + background: white; + border-radius: 10px; + border: 1px solid #eee; + height: 200px; + padding: 10px; + position: relative; + width: 250px; +} +</code></pre> +<p>Which would render as this:</p> +<p><div class="box-container"></div></p> +<p>Not bad - but we can do a lot better than this.</p> +<h2>Please sir, I want some more (depth)</h2> +<p>We just need to add a simple child <code>div</code> (or use a <code>pseudo</code> element if you prefer) inside our main element we want to apply the shadow to:</p> +<pre><code><div class="box-container"> + <div class="box-container-inner"></div> +</div> +</code></pre> +<p>Now we make our inner child element <code>absolute</code> and set it's <code>height</code> and <code>width</code> dynamically to be slightly smaller than it's parent (percentages work best for this). </p> +<p>Remember to set this child element behind it's parent by adding <code>z-index: -1</code>.</p> +<pre><code>.box-container { + /* No box-shadow needed on this element anymore */ + /* Styles to make it less ugly */ + background: white; + border-radius: 10px; + border: 1px solid #eee; + height: 200px; + padding: 10px; + position: relative; + width: 250px; +} +</code></pre> +<h2>Inner Containers</h2> +<p>We also need to target the <code>box-container-inner</code> element set inside the current parent to reflect our custom shadow styling:</p> +<pre><code>.box-container-inner { + bottom: 0; + /* The box-shadow is added here now */ + box-shadow: 0 4px 12px rgba(0,0,0,0.3); + height: 94%; + left: 3%; + position: absolute; + width: 94%; + z-index: -1; +} +</code></pre> +<p>Which will make the drop-shadow render with a little more realistic depth:</p> +<p><div class="box-container-depth"><span class="box-container-depth-inner"></span></div></p> +<h2>But wait - there's more!</h2> +<p>We could stop now and have a decent drop-shadow that is certainly easier on the eyes - but we can make this even better with one extra property - <code>filter:blur();</code>. </p> +<p>So your final code would look like this:</p> +<pre><code>.box-container { + /* Styles to make it less ugly */ + background: white; + border-radius: 10px; + border: 1px solid #eee; + height: 200px; + padding: 10px; + position: relative; + width: 250px; +} + +.box-container-inner { + bottom: 0; + box-shadow: 0 4px 12px rgba(0,0,0,0.3); + filter: blur(6px); + height: 94%; + left: 3%; + position: absolute; + width: 94%; + z-index: -1; +} +</code></pre> +<p>Which renders out into a much smoother blend of a drop-shadow, creating a more realistic illusion of depth:</p> +<p><div class="box-container-depth"> + <span class="box-container-depth-inner blur"></span> +</div></p> +<footer role="contentinfo"> + <h2>Menu Navigation</h2> + <ul id="menu"> + <li><a href="/">Home</a></li> + <li><a href="/projects">Projects</a></li> + <li><a href="/uses">Uses</a></li> + <li><a href="/wiki">Wiki</a></li> + <li><a href="/resume">Resume</a></li> + <li><a href="/colophon">Colophon</a></li> + <li><a href="/now">Now</a></li> + <li><a href="/donate">Donate</a></li> + <li><a href="/atom.xml">RSS</a></li> + <li><a href="#top">↑ Top of the page</a></li> + </ul> + <small> + Built with <a href="https://git.sr.ht/~bt/barf">barf</a>. <br> + Maintained with ♥ for the web. <br> + Proud supporter of <a href="https://usefathom.com/ref/DKHJVX">Fathom</a> & <a href="https://nextdns.io/?from=74d3p3h8">NextDNS</a>. <br> + The content for this site is <a href="https://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>.<br> The <a href="https://git.sr.ht/~bt/bt.ht">code for this site</a> is <a href="https://git.sr.ht/~bt/bt.ht/tree/master/item/LICENSE">MIT</a>. + </small> +</footer>
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