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exceptforlast

A Pen By nakanishi Pro

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About CSS Preprocessors

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

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

     

Vendor Prefixing

About Vendor Prefixing

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About JavaScript Preprocessors

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

            
              <div class="box">1</div>
<div class="box">2</div>
<div class="box">3</div>
<div class="box">4</div>
<div class="box">5</div>
!

CSS

            
              .box
	width: 30px
	height: 20px
	float: left
	border: solid 1px black
	position: relative

	//最後以外
	&:not(:last-child)
		background-color: green

	//最後
	&:last-child
		background-color: red
	
	//最後以外のものに、疑似要素を付ける
	&:not(:last-child):after
		content: ""
		position: absolute
		box-sizing: border-box
		border-left: blue 1px solid
		width: 0
		height: 245px
		left: 0px
		top: 0px
		//ねじる
		transform: rotate(12deg)
!

JS
!
999px
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