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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>

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Insecure Resource

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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.

Vendor Prefixing

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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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HTML 

              
                  <div class="wrap">
        <div id="demo">
            <div id="panorama">
                <div class="face f1"></div>
                <div class="face f2"></div>
                <div class="face f3">
                </div>
                <div class="face f4">
                    <div class="label" id="l1">
                        Public Library
                        <hr />
                    </div>
                </div>
                <div class="face f5">
                    <div class="label" id="l2">
                        Hospital
                        <hr />
                    </div>
                </div>
                <div class="face f6">
                    <div class="label" id="l3">
                        Middle school
                        <hr />
                    </div>
                </div>
            </div>
        </div>
    </div>
!

CSS 

              
                html, body {
            height: 100%; width: 100%;
        }
        body {
            margin: 0;
            background: #FFF;
        }
        .wrap {
            position: absolute;
            top: 50%; left: 50%;
            height: 400px; width: 400px;
            margin: -240px 0 0 -240px;
            background: #F0F0F0;
            padding: 40px;
            box-shadow: 0 0 3px #DDD;
            border-radius: 3px;
            overflow: hidden;
        }
        #demo {
            height: 100%; width: 100%;
            overflow: hidden;
            position: relative;

            -webkit-perspective: 300px;
               -moz-perspective: 300px;
                    perspective: 300px;
            -webkit-user-select: none;
               -moz-user-select: none;
                    user-select: none;
        }
        #panorama, #panorama .face {
            position: absolute;
            top: 0; left: 0;
            width: 100%; height: 100%;
            -webkit-transform-style: preserve-3d;
               -moz-transform-style: preserve-3d;
                    transform-style: preserve-3d;
        }
        #panorama .face, .label {
            -webkit-backface-visibility:hidden;
               -moz-backface-visibility:hidden;
                    backface-visibility:hidden;
        }
        #panorama .face {
            background-image: url("https://labs-ks.netlify.app/panorama.jpg");
        }
        #panorama .face:nth-child(1) {
            background-position: 0 0;
            -webkit-transform: rotateX(90deg) translateZ(-199px);
               -moz-transform: rotateX(90deg) translateZ(-199px);
                    transform: rotateX(90deg) translateZ(-199px);
        }
        #panorama .face:nth-child(2) {
            background-position: -400px 0;
            -webkit-transform: rotateX(-90deg) translateZ(-199px);
               -moz-transform: rotateX(-90deg) translateZ(-199px);
                    transform: rotateX(-90deg) translateZ(-199px);
        }
        #panorama .face:nth-child(3) {
            background-position: -800px 0;
            -webkit-transform: rotateY(90deg) translateZ(-199px);
               -moz-transform: rotateY(90deg) translateZ(-199px);
                    transform: rotateY(90deg) translateZ(-199px);
        }
        #panorama .face:nth-child(4) {
            background-position: 0 -400px;
            -webkit-transform: rotateY(-90deg) translateZ(-199px);
               -moz-transform: rotateY(-90deg) translateZ(-199px);
                    transform: rotateY(-90deg) translateZ(-199px);

        }
        #panorama .face:nth-child(5) {
            background-position: -400px -400px;
            -webkit-transform: translateZ(-199px);
               -moz-transform: translateZ(-199px);
                    transform: translateZ(-199px);
        }
        #panorama .face:nth-child(6) {
            background-position: -800px -400px;
            -webkit-transform: rotateY(180deg) translateZ(-199px);
               -moz-transform: rotateY(180deg) translateZ(-199px);
                    transform: rotateY(180deg) translateZ(-199px);
        }

        .label {
            position: absolute;
            color: #FFF;
            font-size: 16px;
            text-shadow: 1px 1px 2px #000;
            padding: 3px 3px 3px 0;
            font-style: italic;
        }
        .label:before, .label hr {
            position: absolute;
            left: 0; bottom: 0;
            height: 2px;
            background: #FFF;
        }
        .label:before {
            content: '';
            width: 100%;
            box-shadow: 1px 1px 2px rgba(0,0,0,.50);
        }
        .label hr {
            margin: 0; border: 0;
            box-shadow: 1px -1px 2px rgba(0,0,0,.50);
            -webkit-transform: rotate(110deg);
               -moz-transform: rotate(110deg);
                    transform: rotate(110deg);
            -webkit-transform-origin: 1px 1px;
               -moz-transform-origin: 1px 1px;
                    transform-origin: 1px 1px;
        }
        .label hr:before {
            content: '';
            position: absolute;
            right: -3px; top: -3px;
            height: 8px; width: 8px;
            background: #FFF;
            border-radius: 4px;
            box-shadow: 1px -1px 2px rgba(0,0,0,.50);
        }

        #l1 {
            left: 140px; bottom: 30px;
            -webkit-transform: translateZ(50px);
               -moz-transform: translateZ(50px);
                    transform: translateZ(50px);
        }
        #l1 hr {width: 30px;}

        #l2 {
            left: 190px; bottom: 70px;
            -webkit-transform: translateZ(70px);
               -moz-transform: translateZ(70px);
                    transform: translateZ(70px);
        }
        #l2 hr {width: 70px;}

        #l3 {
            left: 190px; bottom: 50px;
            -webkit-transform: translateZ(30px);
               -moz-transform: translateZ(30px);
                    transform: translateZ(30px);
        }
        #l3 hr {width: 50px;}
!

JS 

              
                window.requestAnimFrame = (function() {
            return  window.requestAnimationFrame       ||
                    window.webkitRequestAnimationFrame ||
                    window.mozRequestAnimationFrame    ||
                    function(callback) {
                        window.setTimeout(callback, 1000 / 60);
                    };
        })();


        var Demo = {

            loaded: 0,
            drag: false,
            speed: 0.5,
            brake: 1,
            r: 0,

            Down: function(e) {
                Demo.o = Demo.r;
                Demo.x = Demo.r + e.clientX;
                Demo.drag = true;
                Demo.time = new Date();
            },

            Move: function(e) {
                if (Demo.drag) {
                    Demo.r = Demo.x - e.clientX;
                    Demo.p.style.webkitTransform = 'rotateY(' + Demo.r * 180 / 400 + 'deg)';
                    Demo.p.style.mozTransform = 'rotateY(' + Demo.r * 180 / 400 + 'deg)';
                    Demo.p.style.transform = 'rotateY(' + Demo.r * 180 / 400 + 'deg)';
                }
            },

            Up: function() {
                if (Demo.drag) {
                    var time = new Date() - Demo.time;
                    var path = Demo.r - Demo.o;
                    Demo.speed = path / time * 5;
                    Demo.brake = 1.01;
                    Demo.drag = false;
                }
            },

            Spin: function() {
                if (!Demo.drag) {
                    Demo.r += Demo.speed;
                    Demo.speed /= Demo.brake;
                    Demo.p.style.webkitTransform = 'rotateY(' + Demo.r * 180 / 400 + 'deg)';
                    Demo.p.style.mozTransform = 'rotateY(' + Demo.r * 180 / 400 + 'deg)';
                    Demo.p.style.transform = 'rotateY(' + Demo.r * 180 / 400 + 'deg)';
                }
                window.requestAnimFrame(Demo.Spin);
            },

            Bind: function() {
                Demo.e.addEventListener('mousedown', Demo.Down, false);
                Demo.e.addEventListener('mousemove', Demo.Move, false);
                Demo.e.addEventListener('mouseup', Demo.Up, false);
                Demo.e.addEventListener('mouseleave', Demo.Up, false);
                window.requestAnimFrame(Demo.Spin);
            },

            Init: function() {
                Demo.e = document.getElementById('demo');
                Demo.p = document.getElementById('panorama');
                Demo.l = document.getElementById('loader');
                Demo.Bind();
            }
        };


        document.addEventListener('DOMContentLoaded', Demo.Init, false);
!
999px

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