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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

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.

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JavaScript

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

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Babel includes JSX processing.

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HTML 

              
                <nav role="navigation">
    <div id="menuToggle">
        <!--
        A fake / hidden checkbox is used as click reciever,
        so you can use the :checked selector on it.
        -->
        <input type="checkbox"/>

        <!--
        Some spans to act as a hamburger.

        They are acting like a real hamburger,
        not that McDonalds stuff.
        -->
        <span></span>
        <span></span>
        <span></span>

        <!--
        Too bad the menu has to be inside of the button
        but hey, it's pure CSS magic.
        -->
        <ul id="menu">
            <li><a href="#">Home</a></li>
            <li class="">
                <div tabindex="0" class="onclick-menu">About
                    <ul class="onclick-menu-content">
                        <li><a href="#">Sub-1</a></li>
                        <li><a href="#">Sub-2</a></li>
                        <li><a href="#">Sub-3</a></li>
                    </ul>
                </div>
            </li>
            <li><a href="#">Info</a></li>
            <li><a href="#">Contact</a></li>
            <li><a href="https://erikterwan.com/" target="_blank">Show me more</a></li>
        </ul>
    </div>
</nav>
!

CSS 

              
                body {
            margin: 0;
            padding: 0;

            /* make it look decent enough */
            background: #232323;
            color: #cdcdcd;
            font-family: "Avenir Next", "Avenir", sans-serif;
        }

        a,div {
            text-decoration: none;
            color: #232323;

            transition: color 0.3s ease;
        }

        a:hover {
            color: tomato;
        }

        #menuToggle {
            display: block;
            position: relative;
            top: 50px;
            left: 50px;

            z-index: 1;

            -webkit-user-select: none;
            user-select: none;
        }

        #menuToggle input {
            display: block;
            width: 40px;
            height: 32px;
            position: absolute;
            top: -7px;
            left: -5px;

            cursor: pointer;

            opacity: 0; /* hide this */
            z-index: 2; /* and place it over the hamburger */

            -webkit-touch-callout: none;
        }

        /*
         * Just a quick hamburger
         */
        #menuToggle span {
            display: block;
            width: 33px;
            height: 4px;
            margin-bottom: 5px;
            position: relative;

            background: #cdcdcd;
            border-radius: 3px;

            z-index: 1;

            transform-origin: 4px 0px;

            transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0),
            background 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0),
            opacity 0.55s ease;
        }

        #menuToggle span:first-child {
            transform-origin: 0% 0%;
        }

        #menuToggle span:nth-last-child(2) {
            transform-origin: 0% 100%;
        }

        /*
         * Transform all the slices of hamburger
         * into a crossmark.
         */
        #menuToggle input:checked ~ span {
            opacity: 1;
            transform: rotate(45deg) translate(-2px, -1px);
            background: #232323;
        }

        /*
         * But let's hide the middle one.
         */
        #menuToggle input:checked ~ span:nth-last-child(3) {
            opacity: 0;
            transform: rotate(0deg) scale(0.2, 0.2);
        }

        /*
         * Ohyeah and the last one should go the other direction
         */
        #menuToggle input:checked ~ span:nth-last-child(2) {
            transform: rotate(-45deg) translate(0, -1px);
        }

        /*
         * Make this absolute positioned
         * at the top left of the screen
         */
        #menu {
            position: absolute;
            width: 300px;
            margin: -100px 0 0 -50px;
            padding: 50px;
            padding-top: 125px;

            background: #ededed;
            list-style-type: none;
            -webkit-font-smoothing: antialiased;
            /* to stop flickering of text in safari */

            transform-origin: 0% 0%;
            transform: translate(-100%, 0);

            transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0);
        }

        #menu li {
            padding: 10px 0;
            font-size: 22px;
        }

        /*
         * And let's slide it in from the left
         */
        #menuToggle input:checked ~ ul {
            transform: none;
        }


        .onclick-menu:focus {
            /* clicking on label should toggle the menu */
            pointer-events: none;
        }

        .onclick-menu:focus .onclick-menu-content {
            /*  opacity is 1 in opened state (see below) */
            opacity: 1;
            visibility: visible;
            display: inherit;
            /* don't let pointer-events affect descendant elements */
            pointer-events: auto;
        }

        .onclick-menu-content {
           /* use opacity to fake immediate toggle */
            display: none;
            opacity: 0;
            visibility: hidden;
            transition: visibility 0.5s;
        }
        .onclick-menu-content li{
            list-style: none;
        }
!

JS
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999px

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