Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using it's URL and the proper URL extention.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

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.

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <div class="g-bg"></div>
<div class="grid"></div>
<div class="grid"></div> 
<div class="g-mountain"></div>
<svg width="0">
  <filter id="filter">
    <feTurbulence id="turbulence" type="fractalNoise" baseFrequency=".03" numOctaves="20" />
    <feDisplacementMap in="SourceGraphic" scale="30" />
  </filter>
</svg>
<svg width="0">
  <filter id="filter2">
    <feTurbulence id="turbulence" type="fractalNoise" baseFrequency=".02" numOctaves="20" />
    <feDisplacementMap in="SourceGraphic" scale="30" />
  </filter>
</svg>
              
            
!

CSS

              
                html, body {
    position: relative;
    width: 100%;
    height: 100%;
}
:root {
    --c1: hsl(219, 79%, 66%);
    --c2: #d733b3;
    --c3: #43256b;
    --c4: #af308f;
    --c5: #f33434;
    --c6: #e3e345;
    --c7: #f97246;
}

body {
    perspective: 300px;
    overflow: hidden;
    &::before {
        position: absolute;
        content: "";
        top: 55%;
        left: 0;
        bottom: 0;
        right: 0;
        background: linear-gradient(var(--c3), var(--c2));
    }
}
.grid {
    position: absolute;
    width: 300vw;
    height: 600px;
    left: -100vw;
    top: 55vh;
    transform-style: preserve-3d;
    z-index: 1;
    background:
        repeating-linear-gradient(var(--c1), var(--c1) 1px, transparent 1px, transparent 20px),
        repeating-linear-gradient(90deg, var(--c1), var(--c1) 1px, transparent 1px, transparent 20px);
    transform: translate3d(0, 0, 0) rotateX(90deg);
    transform-origin: 50% 0;
    animation: move 20s infinite linear;
}
.grid:nth-child(2) {
    animation: move 20s infinite -10s linear;
}
.g-bg {
    position: absolute;
    top: 0%;
    left: 0;
    bottom: 43%;
    right: 0;
    background: radial-gradient(circle at 50% 100%, var(--c5), var(--c4));
    z-index: 1;
    -webkit-box-reflect: below -50px linear-gradient(rgba(255, 255, 255, .2), transparent);
    
    &::before {
        content: "";
        position: absolute;
        bottom: 20%;
        left: 10%;
        right: 10%;
        top: 10%;
        background: radial-gradient(circle at 50% 100%, var(--c7), var(--c6) 55%, transparent 55.1%, transparent);
        mask: linear-gradient(to top,
            #000 0, #000 10%,
            transparent 10%, transparent 13%,
            #000 13%, #000 20%,
            transparent 20%, transparent 22%,
            #000 22%, #000 35%,
            transparent 35%, transparent 36%,
            #000 36%, #000 100%);
    }
    &::after {
        content: "";
        position: absolute;
        top: 0;
        bottom: 0;
        right: 0;
        left: 0;
        background: repeating-linear-gradient(90deg, transparent 0, transparent 3px, rgba(0,0,0,.5) 4px, rgba(0,0,0,.5) 5px);
        z-index: 1;
    }
}
.g-mountain {
    position: absolute;
    left: 0;
    right: 0;
    top: 15%;
    bottom: 42%;
    z-index: 10;
    overflow: hidden;
    
    &::before,
    &::after {
        content: "";
        position: absolute;
        top: 78%;
        // right: 0;
        // bottom: 0;
        color: #011d3f;
        background: #011d3f;
        // clip-path: polygon(33% 45%, 15% 82%, 0 80%, 0 100%, 100% 100%, 100% 80%, 88% 84%, 78% 60%, 64% 74%, 59% 10%, 38% 59%);
        width: 15vw;
        height: 15vw;
        transform: rotate(-45deg);
        box-shadow: -3vw -3vw, 5vw 5vw, 10vw 10vw 0 3vw, 15vw 20vw 0 4vw, 22vw 22vw 0 6vw, 25vw 30vw 0 12vw, 38vw 36vw 0 1vw, 41vw 39vw 0 3vw, 45vw 45vw 0 2vw, 52vw 52vw 0 4vh, 55vw 55vw 0 1.5vw, 61vw 61vw 0 0.5vw, 68vw 68vw 0 0;
        filter: url('#filter');   
        z-index: 2;
    }
    &::after {
        left: 1%;
        top: 74%;
        color: #23388d;
        z-index: 1;
        filter: url('#filter2'); 
    }
    // 
    
}
@keyframes move {
    0% {
        transform: translate3d(0, 0, -600px) rotateX(90deg);
    }
    100% {
        transform: translate3d(0, 0, 600px) rotateX(90deg);
    }
}
              
            
!

JS

              
                
              
            
!
999px

Console