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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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.
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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.
Babel includes JSX processing.
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<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quidem deleniti accusantium quasi ab ad officia cupiditate sed aliquam nobis expedita velit dolorum perspiciatis pariatur nam vero et magnam soluta tempora!</p>
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body::-webkit-scrollbar {
width: 1em;
}
body::-webkit-scrollbar-track {
-webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);
}
body::-webkit-scrollbar-thumb {
background-color: darkgrey;
outline: 1px solid slategrey;
}
html {
background: lightgrey;
height: 100%;
overflow: hidden;
}
body {
height: 100%;
background: whitesmoke;
overflow: scroll;
max-width: 250px;
margin: 0 auto;
padding: 3em;
font: 100%/1.4 serif;
border: 1px solid rgba(0,0,0,0.25)
}
p {
margin: 0 0 1.5em;
}
Also see: Tab Triggers