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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

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About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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Insecure Resource

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CSS

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

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

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Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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About Packages

Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.

All packages are different, so refer to their docs for how they work.

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HTML 

              
                <ul>
  <li>MENU1<span class="tooltip blue">MENU1</span></li>
  <li>MENU2<span class="tooltip red">MENU2</span></li>
  <li>MENU3<span class="tooltip green">MENU3</span></li>
</ul>
<ul>
  <li>MENU1<span class="tooltip brown">MENU1</span></li>
  <li>MENU2<span class="tooltip black">MENU2</span></li>
  <li>MENU3<span class="tooltip gray">MENU3</span></li>
</ul>
<p><a href="https://1-notes.com/css-tooltip-design-collection/" target="_blank" rel="noopener">CSSでマウスホバーで表示するバルーンポップ・ツールチップのデザイン集</a></p>
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CSS 

              
                ul {
	margin-top: 50px;
}

li {
	position: relative;
	display: inline-block;
	padding: 10px;
}

.tooltip {
	position: absolute;
	bottom: 2.5rem;
	left: 6px;
	padding: 6px 10px;
	background: #01579B;
	color: #FFF;
	font-size: 0.8rem;
	border-radius: 10px;
	transition: 0.5s;
	opacity: 0;
	filter: drop-shadow(5px 4px 2px rgba(0, 0, 0, 0.5));
}

li:hover .tooltip {
	opacity: 1;
}

/*以下カラー分け*/
.blue {
	background-image: repeating-linear-gradient(135deg, #0091EA 0px 6px, #01579B 6px 12px);
}

.red {
	background-image: repeating-linear-gradient(135deg, #FF5252 0px 6px, #D50000 6px 12px);
}

.green {
	background-image: repeating-linear-gradient(135deg, #00C853 0px 6px, #2E7D32 6px 12px);
}

.brown {
	background-image: repeating-linear-gradient(135deg, #5D4037 0px 6px, #3E2723 6px 12px);
}

.black {
	background-image: repeating-linear-gradient(135deg, #000000 0px 6px, #424242 6px 12px);
}

.gray {
	background-image: repeating-linear-gradient(135deg, #616161 0px 6px, #757575 6px 12px);
}
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JS
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999px

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