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. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

JavaScript

Babel is required to process package imports. If you need a different preprocessor remove all packages first.

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

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

              
                - var maxBubbles = 40;

form(action="")
  - for (var b = 0; b < maxBubbles; ++b) {
      input(type="checkbox",id="bubble" + (b + 1))
      label(for="bubble" + (b + 1)).bubble
        span.bubble-inner
            span
  - }
  div.timer= "Time"
    div.time-left
      span
  div.score
  div.intro= "Pop as many bubbles as you can!"
  div.menu
    h1= "Game Over"
    ul
      li
        button(type="submit")
          svg(class="menu-icon",viewBox="0 0 24 24"): path(vector-effect="non-scaling-stroke",fill="#000000",d="M2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2A10,10 0 0,0 2,12M4,12A8,8 0 0,1 12,4A8,8 0 0,1 20,12A8,8 0 0,1 12,20A8,8 0 0,1 4,12M10,17L15,12L10,7V17Z")/
          = "Play Again"
              
            
!

CSS

              
                // game itself
$bg: #08c;
$minGameW: 300px;
$timer: 45s;
// bubbles
$bubbleSize: 15vw;
$bubbleColor: #f44 #f84 #ff8 #8f8 #8ff #88f;
$bubbleSizeCut: 0.5 0.6 0.7 0.8 0.9 1;
$maxBubbles: 40;
$minDur: 2s;
// font
$minFontSize: 20pt;
$addedFontSize: 1.1vw;
// score
$scoreW: 70px;
// bubble texture reference - http://img.brothersoft.com/screenshots/softimage/f/flowbubbles-69406-1.jpeg
@mixin createBubble($color, $size) {
  box-shadow: 0 (-$size * 0.019) ($size * 0.032) #fff inset, 0 (-$size * 0.051) ($size * 0.128) $color inset, 0 ($size * 0.01) ($size * 0.01) $color inset, ($size * 0.01) 0 ($size * 0.032) #fff inset, -($size * 0.01) 0 ($size * 0.032) #fff inset, 0 ($size * 0.026) ($size * 0.128) ($color + #aaa) inset;
  width: $size;
  height: $size;
  max-width: $size;
  max-height: $size;
  &:before {
    top: $size * 0.115;
    left: $size * 0.179;
    width: $size * 0.16;
    height: $size * 0.064;
  }
  &:after {
    opacity: 0.1;
    top: $size * 0.16;
    left: $size * 0.16;
    width: $size;
    height: $size;
  }
  span {
    background: radial-gradient(at center bottom, transparent, transparent 70%, ($color + #aaa));
    top: ($size * 0.01);
    left: $size * 0.096;
    width: $size * 0.808;
    height: $size * 0.622;
  }
}

// used later for random bubble placement and animation delay
@function randomNumber($min, $max) {
  @return ceil((random() * $max) - $min) + $min;
}

body {
  background: $bg linear-gradient($bg * 1.5, $bg, $bg / 2);
  counter-reset: popped;
  margin: 0;
  overflow: hidden;
}

body,
button {
  font-family: Lato, sans-serif;
  font-size: calc(#{$minFontSize} + #{$addedFontSize});
  font-weight: 300;
  line-height: calc(#{$minFontSize} + #{$addedFontSize});
}

h1 {
  font-size: calc(#{$minFontSize * 1.5} + #{$addedFontSize * 1.5});
  margin-top: 40vh;
}

button,
path {
  transition: all 0.2s;
}

button {
  background: transparent;
  border: 0;
  padding: 0;
  -webkit-appearance: none;
  &:hover {
    color: #fff;
    path {
      fill: #fff;
    }
  }
}

form {
  margin: auto;
  position: relative;
  height: 100vh;
  min-width: $minGameW;
  width: 75%;
}

input {
  position: absolute;
  top: -20px;
  &:checked {
    counter-increment: popped;
    + .bubble {
      display: none;
    }
  }
}

.timer,
.score,
.intro,
.menu,
.bubble {
  position: absolute;
}

.timer,
.score,
.intro {
  z-index: 0;
}

.score,
.intro,
.menu {
  text-align: center;
}

.timer {
  display: flex;
  display: -webkit-flex;
  display: -ms-flex;
  justify-content: space-between;
  -webkit-justify-content: space-between;
  -ms-justify-content: space-between;
  align-items: center;
  -webkit-align-items: center;
  -ms-align-items: center;
  font-size: calc(#{$minFontSize/2} + #{$addedFontSize});
  line-height: calc(#{$minFontSize/2} + #{$addedFontSize});
  top: calc(15px + #{$addedFontSize});
  left: 5%;
  height: calc(15px + #{$addedFontSize});
  width: 90%;
}

.time-left {
  background: #fff;
  height: calc(15px + #{$addedFontSize});
  margin-left: 15px;
  opacity: 0.8;
  width: 100%;
  span {
    display: block;
    background: #c00;
    height: 100%;
    width: 100%;
    animation: timer $timer linear forwards;
  }
}

.score {
  font-size: calc(#{$minFontSize * 1.5} + #{$addedFontSize});
  margin-left: -$scoreW/2;
  top: calc(50px + #{$addedFontSize * 2});
  left: 50%;
  width: $scoreW;
  &::after {
    content: counter(popped);
  }
}

.intro {
  top: 40%;
  width: 100%;
  animation: fade 1s 2s linear reverse forwards;
}

.menu {
  width: 100%;
  height: 100%;
  visibility: hidden;
  z-index: 2;
  animation: fade 1s $timer linear forwards;
}

ul {
  top: 0;
  left: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.menu-icon {
  margin-right: calc(10px + #{$addedFontSize});
  vertical-align: top;
  width: calc(32px + #{$addedFontSize});
  height: calc(32px + #{$addedFontSize});
}

// base bubble styles
.bubble {
  animation-name: ascend;
  animation-timing-function: linear;
  animation-fill-mode: forwards;
  top: 0;
  transform: translateY(100vh);
  will-change: transform;
  z-index: 1;
  .bubble-inner {
    border-radius: 50%;
    display: block;
    &:before,
    &:after,
    span,
    span:after {
      border-radius: 50%;
      content: "";
      display: block;
      position: absolute;
    }
    &:before {
      background: #fff;
      transform: rotate(-30deg);
    }
    &:after {
      background: radial-gradient(transparent, #000 60%, transparent 70%, transparent);
      transform: scale(1.2, 1.2);
    }
    &:hover {
      animation: shake 0.2s linear;
    }
    &:active {
      animation: pop 0.08s cubic-bezier(0.16, 0.87, 0.48, 0.99) forwards;
    }
  }
}

// style six kinds of bubbles with different animation delay, duration (speed), and size
@for $b from 1 through 6 {
  .bubble:nth-of-type(6n + #{$b}) {
    animation-duration: $minDur + (($b - 1) / 2);
    .bubble-inner {
      @include createBubble(nth($bubbleColor, $b), $bubbleSize * nth($bubbleSizeCut, $b));
    }
  }
}

// randomly assign positions and delays
@for $b from 1 through $maxBubbles {
  .bubble:nth-of-type(#{$b}) {
    left: 0% + randomNumber(0, 80);
    animation-delay: 0s + randomNumber(0, $maxBubbles);
  }
}

// animations
@keyframes ascend {
  from {
    transform: translateY(100vh);
    -webkit-transform: translateY(100vh);
  }
  to {
    transform: translateY(-$bubbleSize * 1.2);
    -webkit-transform: translateY(-$bubbleSize * 1.2);
  }
}

@keyframes shake {
  from {
    transform: scale(1, 1);
  }
  33% {
    transform: scale(1, 1.2);
  }
  66% {
    transform: scale(1.2, 1);
  }
  to {
    transform: scale(1, 1);
  }
}

@keyframes pop {
  from {
    opacity: 1;
    transform: translateZ(0) scale(1, 1);
  }
  to {
    opacity: 0;
    transform: translateZ(0) scale(1.75, 1.75);
  }
}

@keyframes fade {
  from {
    opacity: 0;
    visibility: hidden;
  }
  1% {
    opacity: 0;
    visibility: visible;
  }
  to {
    opacity: 1;
    visibility: visible;
  }
}

@keyframes timer {
  from {
    width: 100%;
  }
  to {
    width: 0%;
  }
}
              
            
!

JS

              
                
              
            
!
999px

Console