csssecrets

/**
 * Extruded text
 */

body {
	background: #58a;
	color: white;
	text-shadow: 0 1px hsl(0,0%,85%),
	             0 2px hsl(0,0%,80%),
	             0 3px hsl(0,0%,75%),

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/**
 * Text on a circle
 */

body {
	font: bold 120% Helvetica, sans-serif;
}

.circular {
	width: 30em;

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/**
 * Indicating disabled state
 */

:disabled, [disabled], [aria-disabled="true"] {
	cursor: not-allowed;
}

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/**
 * Extending the hit area — with borders
 */

button {
	padding: .3em .5em;
	border: 10px solid transparent;
	border-radius: 50%;
	background: #58a;
	background-clip: padding-box;

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/**
 * Custom checkboxes
 */

input[type="checkbox"] {
	position: absolute;
	clip: rect(0,0,0,0);
}

input[type="checkbox"] + label::before {

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/**
 * Toggle buttons
 */

input[type="checkbox"] {
	position: absolute;
	clip: rect(0,0,0,0);
}

input[type="checkbox"] + label {

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/**
 * Rudimetary overlay with box-shadow
 */

.lightbox {
	position: fixed;
	top: 50%; left: 50%;
	margin: -200px;
	box-shadow: 0 0 0 50vmax rgba(0,0,0,.8);
}

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/**
 * Native modal dialog (limited support)
 */

dialog::backdrop {
	background: rgba(0,0,0,.8)
}

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/**
 * De-emphasizing by blurring (AND dimming)
 */

main {
	transition: .6s;
	background: white;
}

main.de-emphasized {

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/**
 * Interactive image comparison — range input version
 */

.image-slider {
	position:relative;
	display: inline-block;
}

.image-slider > div {