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HTML

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About the <head>

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.

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HTML 

              
                <html>
	<head></head>
	<body>
		<div id="app">
			<aside>
				<div class="quote-mode">
					<input type="radio" id="long-quote" v-model="isLongQuote" :value="true" name="quoteMode">
					<label for="long-quote">blockquote tag</label>

					<input type="radio" id="short-quote" v-model="isLongQuote" :value="false" name="quoteMode">
					<label for="short-quote">q tag</label>
				</div>
				<p>What's the difference? <a href="https://quentin-bellanger.com/semantic-quotes" target="_blank" rel="noopener">Read this post</a>.</p>
			</aside>
			<main>
				<h1>Quotes for the web</h1>
				<hr>
				<!-- For long quotes, use <blockquote> tag -->
				<blockquote v-if="isLongQuote" cite="https://www.brainyquote.com/quotes/michael_jordan_127660">
					<p class="quote">I've missed more than 9000 shots in my career. I've lost almost 300 games. 26 times, I've been trusted to take the game winning shot and missed. I've failed over and over and over again in my life. And that is why I succeed.</p>
					<span class="author">Michael Jordan</span>
				</blockquote>

				<!-- For short quotes, use <q> tag -->
				<p v-else>As the famous scientist <span>Albert Einstein</span> once said, <q cite="https://www.brainyquote.com/quotes/albert_einstein_103652">Everything should be made as simple as possible, but not simpler.</q> and as a minimalist I can't agree more.</p>
			</main>
		</div>
	</body>
</html>
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CSS 

              
                $color-blue: #91EAE4;
$color-purple: #7F7FD5;
$color-black: #000000;
$color-white: #ffffff;

body {
	background: $color-purple;
	background: -webkit-linear-gradient(to right, $color-blue, $color-purple);
	background: linear-gradient(to right, $color-blue, $color-purple);
	height: 100vh;
	margin: 0;
	
	#app {
		align-items: center;
		display: flex;
		flex-direction: column;
		justify-content: center;
		
		main {
			background: $color-white;
			border-radius: 5px;
			box-shadow: 0 4px 8px 0 rgba($color-black, 0.2), 0 6px 20px 0 rgba($color-black, 0.19);
			max-width: 400px;
			padding: 25px;
			position: relative;

			&::after {
				content: "";
				background: $color-white;
				border-radius: 5px;
				position: absolute;
				top: -0;
				left: 0;
				height: 100%;
				transform: rotate(2deg);
				width: 100%;
				z-index: -1;
			}
			
			h1 {
				margin: 0;
				text-align: center;
			}

			blockquote {
				margin: 0;
				padding: 0;
			}
			
			p {
				font-size: 1.2em;
				line-height: 1.5em;

				&::first-letter {
					font-size: 2em;
					font-weight: bold;
				}
				
				q {
					font-style: italic;
				}
			}
		}
		
		aside {
			margin: 25px 0;
			text-align: center;
			
			input {
				display: none;
				
				&:checked + label::after {
					background: $color-purple;
				}
			}
			
			label {
				display: inline-block;
				font-family: sans-serif;
				font-size: 18px;
				margin: 0 30px;
				position: relative;
				text-align: left;
				width: auto;
				
				&::after {
					background: $color-white;
					border: 2px solid $color-white;
					border-radius: 50%;
					box-shadow: 0 0 0px 2px $color-purple;
					content: '';
					height: 10px;
					left: -25px;
					position: absolute;
					top: 5px;
					transition: background 0.3s;
					width: 10px;
				}
			}
			
			p {
				font-family: sans-serif;
				font-size: 14px;
				
				a {
					color: $color-white;
					text-decoration: none;

					&:hover,
					&:focus {
						border-bottom: 1px solid $color-white;
					}
				}
			}
		}
	}
}

.author {
	display: block;
	font-size: 1.2em;
	font-style: italic;
	text-align: right;
}

hr {
	border: none;
	border-bottom: 3px solid rgba($color-blue, 0.6);
	box-shadow: 0 -3px 0 rgba($color-purple, 0.4);
	margin: 25px auto;
	width: 100px;
}
!

JS 

              
                new Vue({
  el: '#app',
  data() {
		return {
			isLongQuote: true,
		}
	}
})
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999px

Console