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HTML

About HTML Preprocessors

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

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

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

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

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).

Add External Stylesheets/Pens

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You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

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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.

Add External Scripts/Pens

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About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

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

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

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Packages

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HTML 

              
                <div class="instructions">
  <div class="instructions__item">Use arrows to move</div><br>
  <div class="instructions__item">Hold space for rain</div><br>
</div>

<div class="post">See how it was made <a href="https://codepen.io/MarioD/post/7bc352c11f2ca67c06084fb7fb00c56e/bike-to-shool-the-process" class="post__link" target="_blank">here</a></div>

<div class="planet">
  <svg class="rotating-fog" x="0px" y="0px" viewBox="0 0 295 268.5" style="enable-background:new 0 0 295 268.5;" xml:space="preserve">
    <path class="st0" d="M295,160.5c0-19.2-10.4-36-26-45c-3.1-15.9-13.5-29.3-27.6-36.4c1-4,1.5-8.2,1.5-12.6c0-28.7-23.3-52-52-52
    	c-5.7,0-11.3,0.9-16.4,2.6C165.1,6.6,151.3,0,136,0c-19,0-35.7,10.2-44.8,25.5c-9-7.5-20.6-12-33.2-12c-28.7,0-52,23.3-52,52
    	c0,10.1,2.9,19.6,7.9,27.6C5.3,102.4,0,114.8,0,128.5c0,13.9,5.4,26.5,14.3,35.8C9,172.4,6,182.1,6,192.5c0,28.7,23.3,52,52,52
    	c2.1,0,4.2-0.1,6.2-0.4c8.4,5.9,18.7,9.4,29.8,9.4c3.9,0,7.6-0.4,11.3-1.2c9.5,10,22.9,16.2,37.7,16.2c13.7,0,26.1-5.3,35.4-13.9
    	c8.6,6.2,19.2,9.9,30.6,9.9c28.7,0,52-23.3,52-52c0-1.1,0-2.1-0.1-3.2C280.8,202,295,182.9,295,160.5z"/>
  </svg>

  <div class="path-wrapper">

    <svg class="grass-1" x="0px" y="0px" viewBox="0 0 57.8 29" style="enable-background:new 0 0 57.8 29;" xml:space="preserve">
    	<path d="M57.8,0c0,0-25,10.5-25,29H21C21,10.5,0,5,0,5c16.8,0,21.7,6.4,26.9,14.1C32.2,11.4,41,0,57.8,0z"/>
    </svg>

    <svg class="grass-2" x="0px" y="0px" viewBox="0 0 57.8 29" style="enable-background:new 0 0 57.8 29;" xml:space="preserve">
    	<path d="M57.8,0c0,0-25,10.5-25,29H21C21,10.5,0,5,0,5c16.8,0,21.7,6.4,26.9,14.1C32.2,11.4,41,0,57.8,0z"/>
    </svg>

    <svg class="grass-3" x="0px" y="0px" viewBox="0 0 57.8 29" style="enable-background:new 0 0 57.8 29;" xml:space="preserve">
    	<path d="M57.8,0c0,0-25,10.5-25,29H21C21,10.5,0,5,0,5c16.8,0,21.7,6.4,26.9,14.1C32.2,11.4,41,0,57.8,0z"/>
    </svg>

    <svg class="tree-01" x="0px" y="0px" viewBox="0 0 266.7 346.7" style="enable-background:new 0 0 266.7 346.7;" xml:space="preserve">
      <path d="M238.7,346.7l-17.3-77.3c9.3,11.3,45.3,20,45.3,20C240,272,204,206,204,206c8,5.3,31.3,6,31.3,6
        c-27.3-14-56.7-79.3-56.7-79.3c6.7,4.7,20,2.7,20,2.7c-24-12.7-47.3-72.7-47.3-72.7c11.3,8,20.7,6.7,20.7,6.7
        C148.7,51.3,133.3,0,133.3,0c0,0-15.3,51.3-38.7,69.3c0,0,9.3,1.3,20.7-6.7c0,0-23.3,60-47.3,72.7c0,0,13.3,2,20-2.7
        c0,0-29.3,65.3-56.7,79.3c0,0,23.3-0.7,31.3-6c0,0-36,66-62.7,83.3c0,0,36-8.7,45.3-20L28,346.7H238.7z"/>
    </svg>

    <svg class="tree-02" x="0px" y="0px" viewBox="0 0 266.7 346.7" style="enable-background:new 0 0 266.7 346.7;" xml:space="preserve">
      <path d="M238.7,346.7l-17.3-77.3c9.3,11.3,45.3,20,45.3,20C240,272,204,206,204,206c8,5.3,31.3,6,31.3,6
        c-27.3-14-56.7-79.3-56.7-79.3c6.7,4.7,20,2.7,20,2.7c-24-12.7-47.3-72.7-47.3-72.7c11.3,8,20.7,6.7,20.7,6.7
        C148.7,51.3,133.3,0,133.3,0c0,0-15.3,51.3-38.7,69.3c0,0,9.3,1.3,20.7-6.7c0,0-23.3,60-47.3,72.7c0,0,13.3,2,20-2.7
        c0,0-29.3,65.3-56.7,79.3c0,0,23.3-0.7,31.3-6c0,0-36,66-62.7,83.3c0,0,36-8.7,45.3-20L28,346.7H238.7z"/>
    </svg>

    <svg class="tree-03" x="0px" y="0px" viewBox="0 0 266.7 346.7" style="enable-background:new 0 0 266.7 346.7;" xml:space="preserve">
      <path d="M238.7,346.7l-17.3-77.3c9.3,11.3,45.3,20,45.3,20C240,272,204,206,204,206c8,5.3,31.3,6,31.3,6
        c-27.3-14-56.7-79.3-56.7-79.3c6.7,4.7,20,2.7,20,2.7c-24-12.7-47.3-72.7-47.3-72.7c11.3,8,20.7,6.7,20.7,6.7
        C148.7,51.3,133.3,0,133.3,0c0,0-15.3,51.3-38.7,69.3c0,0,9.3,1.3,20.7-6.7c0,0-23.3,60-47.3,72.7c0,0,13.3,2,20-2.7
        c0,0-29.3,65.3-56.7,79.3c0,0,23.3-0.7,31.3-6c0,0-36,66-62.7,83.3c0,0,36-8.7,45.3-20L28,346.7H238.7z"/>
    </svg>

    <svg class="tree-04" x="0px" y="0px" viewBox="0 0 266.7 346.7" style="enable-background:new 0 0 266.7 346.7;" xml:space="preserve">
      <path d="M238.7,346.7l-17.3-77.3c9.3,11.3,45.3,20,45.3,20C240,272,204,206,204,206c8,5.3,31.3,6,31.3,6
        c-27.3-14-56.7-79.3-56.7-79.3c6.7,4.7,20,2.7,20,2.7c-24-12.7-47.3-72.7-47.3-72.7c11.3,8,20.7,6.7,20.7,6.7
        C148.7,51.3,133.3,0,133.3,0c0,0-15.3,51.3-38.7,69.3c0,0,9.3,1.3,20.7-6.7c0,0-23.3,60-47.3,72.7c0,0,13.3,2,20-2.7
        c0,0-29.3,65.3-56.7,79.3c0,0,23.3-0.7,31.3-6c0,0-36,66-62.7,83.3c0,0,36-8.7,45.3-20L28,346.7H238.7z"/>
    </svg>

    <svg class="tree-05" x="0px" y="0px" viewBox="0 0 266.7 346.7" style="enable-background:new 0 0 266.7 346.7;" xml:space="preserve">
      <path d="M238.7,346.7l-17.3-77.3c9.3,11.3,45.3,20,45.3,20C240,272,204,206,204,206c8,5.3,31.3,6,31.3,6
        c-27.3-14-56.7-79.3-56.7-79.3c6.7,4.7,20,2.7,20,2.7c-24-12.7-47.3-72.7-47.3-72.7c11.3,8,20.7,6.7,20.7,6.7
        C148.7,51.3,133.3,0,133.3,0c0,0-15.3,51.3-38.7,69.3c0,0,9.3,1.3,20.7-6.7c0,0-23.3,60-47.3,72.7c0,0,13.3,2,20-2.7
        c0,0-29.3,65.3-56.7,79.3c0,0,23.3-0.7,31.3-6c0,0-36,66-62.7,83.3c0,0,36-8.7,45.3-20L28,346.7H238.7z"/>
    </svg>

    <svg class="mountain-1" x="0px" y="0px" viewBox="0 0 184 184" style="enable-background:new 0 0 184 184;" xml:space="preserve">
      <path d="M169.9,184H14.1C6.4,184,0,177.6,0,169.9V14.1C0,6.4,6.4,0,14.1,0h155.7c7.8,0,14.1,6.4,14.1,14.1v155.7
      	C184,177.6,177.6,184,169.9,184z"/>
    </svg>

    <svg class="mountain-2" x="0px" y="0px" viewBox="0 0 184 184" style="enable-background:new 0 0 184 184;" xml:space="preserve">
      <path d="M169.9,184H14.1C6.4,184,0,177.6,0,169.9V14.1C0,6.4,6.4,0,14.1,0h155.7c7.8,0,14.1,6.4,14.1,14.1v155.7
      	C184,177.6,177.6,184,169.9,184z"/>
    </svg>

    <svg class="mountain-4" x="0px" y="0px" viewBox="0 0 184 184" style="enable-background:new 0 0 184 184;" xml:space="preserve">
      <path d="M169.9,184H14.1C6.4,184,0,177.6,0,169.9V14.1C0,6.4,6.4,0,14.1,0h155.7c7.8,0,14.1,6.4,14.1,14.1v155.7
      	C184,177.6,177.6,184,169.9,184z"/>
    </svg>

    <svg class="mountain-5" x="0px" y="0px" viewBox="0 0 184 184" style="enable-background:new 0 0 184 184;" xml:space="preserve">
      <path d="M169.9,184H14.1C6.4,184,0,177.6,0,169.9V14.1C0,6.4,6.4,0,14.1,0h155.7c7.8,0,14.1,6.4,14.1,14.1v155.7
      	C184,177.6,177.6,184,169.9,184z"/>
    </svg>

    <svg class="rock-1" x="0px" y="0px" viewBox="0 0 221 126" style="enable-background:new 0 0 221 126;" xml:space="preserve">
      <path d="M221.2,71.5c0-23.8-19.2-43-43-43c-10.1,0-19.4,3.5-26.8,9.3c-12.3-22.1-40-37.5-72.2-37.5c-43.6,0-79,28.2-79,63l-0.3,62.3
      	h220.7L221.2,71.5z"/>
    </svg>

    <svg class="rock-2" x="0px" y="0px" viewBox="0 0 221 126" style="enable-background:new 0 0 221 126;" xml:space="preserve">
      <path d="M221.2,71.5c0-23.8-19.2-43-43-43c-10.1,0-19.4,3.5-26.8,9.3c-12.3-22.1-40-37.5-72.2-37.5c-43.6,0-79,28.2-79,63l-0.3,62.3
      	h220.7L221.2,71.5z"/>
    </svg>

    <div class="bike">
      <div id="bm">
        <div class="light"></div>
        <div class="umbrella-animation"></div>
        <div class="bike__marker"></div>
      </div>
    </div>
    <svg width="242.7" height="244.2" x="0px" y="0px" viewBox="0 0 242.7 244.2" style="enable-background:new 0 0 242.7 244.2;" xml:space="preserve">
      <path class="outline" d="M3.3,120.6c0-20.4-4.5-39.8,3.6-57.2c11.9-25.6,30.5-29.8,54.9-43.7C81.6,8.3,94.5,1.9,119,1.9
      	c20.6,0,43,7.6,60.5,15.7c20.6,9.6,38.3,14.3,51.7,32.3c16.7,22.6,6.6,40.5,6.6,70.7c0,18.7,3.2,35.6-3.7,51.8
      	c-9.6,22.7-12.2,23.2-31.8,37.6c-22.5,16.5-48.3,32.3-78.3,32.3c-22,0-44.8-11.2-63.1-20.5C34.6,208.6,20.2,208,7.2,181.6
      	C-1.7,163.5,3.3,142.2,3.3,120.6z"/>
    </svg>

    <div class="cloud-boundary">
      <div class="rain">
        <div class="rain__drops-top"></div>
        <div class="rain__drops-bottom"></div>
      </div>
      <div class="cloud-boundary__marker"></div>
      <div class="cloud">
        <svg class="cloud-svg" x="0px" y="0px" viewBox="0 0 609.5 310" style="enable-background:new 0 0 609.5 310;" xml:space="preserve">
          <path d="M549.5,201c0,0-13-90-105-77c0,0-3-115-118-115c-94,0-116,84-116,84S87.7,68.4,81.1,203.2
          	c0,0-62.9-20.8-71.6,45.8c-7,53.5,68,52,68,52l482-5c0,0,41-1.7,41-45.5C600.5,218,577.8,201,549.5,201z"/>
        </svg>
      </div>
    </div>
  </div>
</div>
!

CSS 

              
                * {
  box-sizing: border-box;
}

html {
  height: 100%;
}

body {
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  overflow: hidden;
  background: #b5c755;
  background: radial-gradient(ellipse at center, #b5c755 0%, #8fb467 50%);
}

.post {
  position: absolute;
  bottom: 20px;
  left: 20px;
  font-family: 'Source Sans Pro', sans-serif;
  color: rgba(0, 0, 0, 0.4);
  font-size: 12px;
}

.post__link {
  color: rgba(0, 0, 0, 0.6);
}

.planet {
  width: 300px;
  height: 300px;
  border-radius: 100%;
  position: relative;
}

.path-wrapper {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 50;
}

.outline {
  fill: transparent;
  stroke: #4d3034;
  fill: #82b765;
  stroke-width: 2;
  position: relative;
  z-index: 5;
}


/* ----- */
/* Cloud */
/* ----- */

.cloud-boundary {
  width: 100px;
  height: 270px;
  position: absolute;
  top: calc(-50% - 30px);
  left: 50%;
  transform: translateX(-50%);
  transform-origin: bottom center;
  z-index: -2;
  will-change: auto;
}

.cloud-boundary__marker {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 1px;
  height: 1px;
}

.cloud {
  width: 100%;
  height: 50px;
  position: absolute;
  top: 0;
  left: 0;
}

.cloud-svg {
  fill: #ffffff;
}



/* ---- */
/* Rain */
/* ---- */

.rain {
  width: calc(100% - 20px);
  height: 100%;
  position: absolute;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  overflow: hidden;
  transition: opacity 0.3s;
  opacity: 0;
}

.rain--active {
  opacity: 0.6;
}

.rain__drops-top {
  height: 100%;
  width: 100%;
  position: absolute;
  left: 0;
  background: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/49240/rain.png) 0 0 no-repeat;
  background-size: 100% 100%;
  opacity: 1;
}

.rain__drops-bottom {
  height: 100%;
  width: 100%;
  position: absolute;
  left: 0;
  background: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/49240/rain.png) 0 0 no-repeat;
  background-size: 100% 100%;
  opacity: 1;
}



/* ---- */
/* Bike */
/* ---- */

.bike {
  position: absolute;
  top: -40px;
  left: -20px;
  width: 40px;
  height: 80px;
  z-index: -2;
  transform: rotate(0);
  will-change: auto;
}

.bike__marker {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 1px;
  height: 1px;
}

#bm {
  position: relative;
}

.bike svg {
  z-index: 20;
  position: relative;
  will-change: auto;
}

.umbrella-animation {
  position: absolute;
  top: -12px;
  left: calc(50% + 2px);
  transform: translateX(-50%);
  width: 100%;
  z-index: 10;
}

.light {
  position: absolute;
  top: 18px;
  left: 30px;
  width: 0;
  z-index: 10;
  height: 10px;
  background: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/49240/light.png) 0 0 no-repeat;
  background-size: 22px 10px;
  transition: width 0s 0.3s, opacity 0.3s;
  transform-origin: center left;
  opacity: 0;
}

.light--active {
  width: 22px;
  transition: width 0.2s, opacity 0s;
  opacity: 0.6;
}



/* ------- */
/* Scenery */
/* ------- */

.tree-01 {
  width: 40px;
  position: absolute;
  top: 5px;
  left: -5px;
  transform: rotate(-41deg);
  z-index: -3;
  fill: #1f6219;
}

.tree-02 {
  width: 30px;
  position: absolute;
  top: 6px;
  left: 16px;
  transform: rotate(-41deg);
  z-index: -1;
  fill: #1a5215;
}

.tree-03 {
  width: 40px;
  position: absolute;
  top: 225px;
  left: 75px;
  transform: rotate(-161deg);
  z-index: -3;
  fill: #1f6219;
}

.tree-04 {
  width: 30px;
  position: absolute;
  top: 225px;
  left: 98px;
  transform: rotate(-169deg);
  z-index: -1;
  fill: #1a5215;
}

.tree-05 {
  width: 30px;
  position: absolute;
  top: 24px;
  left: 225px;
  transform: rotate(-304deg);
  z-index: -1;
  fill: #1a5215;
}

.mountain-1 {
  fill: #97b45c;
  position: absolute;
  top: -18px;
  left: 80px;
  transform: rotate(40deg);
  width: 60px;
  z-index: -5;
}

.mountain-2 {
  fill: #97b45c;
  position: absolute;
  top: -5px;
  left: 119px;
  transform: rotate(56deg);
  width: 60px;
  z-index: -5;
}

.mountain-4 {
  fill: #97b45c;
position: absolute;
top: 156px;
left: 182px;
transform: rotate(77deg);
width: 60px;
z-index: -5;
}

.mountain-5 {
  fill: #97b45c;
  position: absolute;
  top: 180px;
  left: 159px;
  transform: rotate(10deg);
  width: 60px;
  z-index: -5;
}

.rock-1 {
  position: absolute;
top: 127px;
left: -8px;
width: 20px;
transform: rotate(-90deg);
z-index: -1;
fill: #6a6a6a;
}

.rock-2 {
  position: absolute;
  top: 199px;
  left: 198px;
  width: 20px;
  transform: rotate(-206deg);
  z-index: -1;
  fill: #6a6a6a;
}

.rotating-fog {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  fill: #fff;
  opacity: 0.05;
  width: 92%;
  height: 92%;
  animation: spin;
  animation-duration: 40s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  z-index: -10;
}

@keyframes spin {
  0% {transform: translate(-50%, -50%) rotate(360deg);}
  100% {transform: translate(-50%, -50%) rotate(0deg);}
}

.grass-1 {
  position: absolute;
  top: 100px;
  left: -4px;
  transform: rotate(-86deg);
  width: 10px;
  height: 20px;
  fill: #4d3034;
  z-index: -10;
}

.grass-2 {
  position: absolute;
  top: 209px;
  left: 46px;
  transform: rotate(-156deg);
  width: 10px;
  height: 20px;
  fill: #4d3034;
  z-index: -10;
}

.grass-3 {
  position: absolute;
  top: 109px;
  left: 235px;
  transform: rotate(-266deg);
  width: 10px;
  height: 20px;
  fill: #4d3034;
  z-index: -10;
}


/* ------------ */
/* Instructions */
/* ------------ */

.instructions {
  position: absolute;
  top: 0;
  left: 0;
  padding: 20px;
}

.instructions__item {
  font-family: 'Source Sans Pro', sans-serif;
  color: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 3px;
  padding: 4px 10px;
  display: inline-block;
  margin-top: 10px;
  font-size: 12px;
}

.instructions__item:first-child {
  margin-top: 0;
}
!

JS 

              
                const cloudBoundary = document.querySelector('.cloud-boundary');
const bike = document.querySelector('.bike');
const bmContainer = document.querySelector('#bm');
const umbrellaAnimation = document.querySelector('.umbrella-animation');
const rain = document.querySelector('.rain');
const rainDropsTop = document.querySelector('.rain__drops-top');
let rainDropsTopPosition = rain.clientHeight * -1;
const rainDropsBottom = document.querySelector('.rain__drops-bottom');
let rainDropsBottomPosition = 0;
let space;
const light = document.querySelector('.light');


// ------------------------
// Bodymovin bike animation
// ------------------------

var animation = bodymovin.loadAnimation({
  container: bmContainer,
  renderer: 'svg',
  loop: true,
  autoplay: true,
  path: 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/49240/bike.json',
});

animation.setSpeed(1);

var umbrella = bodymovin.loadAnimation({
  container: umbrellaAnimation,
  renderer: 'svg',
  loop: false,
  autoplay: false,
  path: 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/49240/umbrella.json',
});

umbrella.setSpeed(2);

// ------------------------------
// Anime.js animation around path
// ------------------------------

var path = anime.path('.outline');

var motionPath = anime({
  targets: '.bike',
  translateX: path('x'),
  translateY: path('y'),
  rotate: path('angle'),
  easing: 'linear',
  duration: 15000,
  loop: true
});

// -----------------------------------------------
// Detect collision between the bike and the cloud
// -----------------------------------------------

const bikeMarker = document.querySelector('.bike__marker');
const cloudBoundaryMarker = document.querySelector('.cloud-boundary__marker');

const detectCollision = function(item1, item2) {
  return Math.sqrt((item2.left - item1.left) * (item2.left - item1.left) + (item2.top - item1.top) * (item2.top - item1.top));
};

// -------------------------------
// Keyboard controls for the cloud
// -------------------------------

let cloudBoundaryAngle = 0;
let cloudBoundaryVelocity = 0;
let left = false;
let right = false;
let lastDirection = '';

document.addEventListener('keydown', (e) => {
  if(e.keyCode === 37) {
    left = true;
    lastDirection = 'left';
  } else if (e.keyCode === 39) {
    left = true;
    lastDirection = 'right';
  } else if (e.keyCode === 32) {
    space = true;
  }
});

document.addEventListener('keyup', (e) => {
  if(e.keyCode === 37) {
    left = false;
  } else if (e.keyCode === 39) {
    left = false;
  } else if (e.keyCode === 32) {
    space = false;
  }
});



const step = function() {

  // --------------
  // Cloud movement
  // --------------

  if(left || right) {
    if (cloudBoundaryVelocity < 2) {
      cloudBoundaryVelocity += 0.2;
    }
  }

  cloudBoundary.style.transform = `translateX(-50%) rotate(${cloudBoundaryAngle}deg)`

  if(cloudBoundaryVelocity > 0) {
    if(lastDirection === 'left') {
      cloudBoundaryAngle -= cloudBoundaryVelocity;
    } else if (lastDirection === 'right') {
      cloudBoundaryAngle += cloudBoundaryVelocity;
    }

    cloudBoundaryVelocity -= 0.05;
  } else {
    cloudBoundaryVelocity = 0;
  }

  // ------------------------------------
  // Trigger animations based on distance
  // ------------------------------------

  let distanceFromCloud = detectCollision(bikeMarker.getBoundingClientRect(), cloudBoundaryMarker.getBoundingClientRect());

  if (distanceFromCloud < 60) {
    light.classList.add('light--active');
  } else {
    if (light.classList.contains('light--active')) {
      light.classList.remove('light--active');
    }
  }

  if (distanceFromCloud < 80 && space) {
    if(!bmContainer.classList.contains('active')) {
      bmContainer.classList.add('active');
      umbrella.setDirection(1);
      umbrella.play();
    }
  } else {
    if(bmContainer.classList.contains('active')) {
      bmContainer.classList.remove('active');
      umbrella.setDirection(-1);
      umbrella.play();
    }
  }

  // -------------------
  // Rain on space press
  // -------------------

  if (space) {
    if(!rain.classList.contains('rain--active')) {
      rain.classList.add('rain--active');
    }
  } else {
    if(rain.classList.contains('rain--active')) {
      rain.classList.remove('rain--active');
    }
  }

  rainDropsTop.style.top = `${rainDropsTopPosition}px`;
  rainDropsBottom.style.top = `${rainDropsBottomPosition}px`;

  rainDropsTopPosition += 3;
  rainDropsBottomPosition += 3;

  if (rainDropsTopPosition >= 0) {
    rainDropsTopPosition = rain.clientHeight * -1;
  }

  if (rainDropsBottomPosition >= rain.clientHeight) {
    rainDropsBottomPosition = 0;
  }

  window.requestAnimationFrame(step);
};

window.requestAnimationFrame(step);
!
999px

Console