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HTML 

              
                #menu
  .panel
    |[[[https://codepen.io/wbarlow/pen/Pqdxdd]]]
    h1.name Leffe
    h2.type Blonde
    span.price $4.50
    span.abv 6.6%
  .panel
    |[[[https://codepen.io/wbarlow/pen/Pqdxdd]]]
    h1.name Paulaner
    h2.type Ale
    span.price $5
    span.abv 5.5%
  .panel
    |[[[https://codepen.io/wbarlow/pen/PqdXLw]]]
    h1.name Heineken
    h2.type Lager
    span.price $4.50
    span.abv 5%
  .panel
    |[[[https://codepen.io/wbarlow/pen/Pqdxdd]]]
    h1.name Tuborg
    h2.type Stout
    span.price $4
    span.abv 4.6%
  form#order
    select#choice(name="choice")
      option(value="leffe") Leffe
      option(value="paulaner") Paulaner
      option(value="heineken") Heineken
      option(value="tuborg") Tuborg
    label(for="quantity") 1
    input#quantity(type="range" min="0.5" max="4" value="1" step="0.5" name="quantity")
    select#table(name="table")
      option(value="1") Table 1
      option(value="2") Table 2
      option(value="3") Table 3
      option(value="4") Table 4
      option(value="5") Table 5
      option(value="6") Table 6
      option(value="7") Table 7
      option(value="8" selected) Table 8
    input#back(type="reset" value="Cancel")
    input#submit(type="submit" value="Order")
!

CSS 

              
                $animation-time: 0.4s;
$colors:
  #ffffff, #F6EC82, #DFB361,
  #D6795E, #A75377, #3B3B56;

body {
  overflow: hidden;
  font-family: 'Roboto', sans-serif;
}

#info {
  display: none;
}

/* the app - a beer menu / ordering app */
#menu {
  position: absolute;
  display: flex;
  flex-direction: column;
  top: 50%;
  left: 50%;
  /* note: the translateZ(0) enables hardware accel */
  /* without it, there is a weird gap between panels */
  transform: translate(-50%, -50%) translateZ(0);
  height: 80vh;
  width: (80vh / 1.5);
  border-radius: 2vh;
  overflow: hidden;
  box-shadow:
    4vh 7vh 14vh -6vh rgba(0,0,0,0.35),
    -4vh 7vh 14vh -6vh rgba(0,0,0,0.35);
}

/* the actual order form (not initially visible) */
#order {
  display: none;
  height: 20vh;
  input, select, option {
    outline: none !important;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    cursor: pointer;
  }
  #choice {
    display: none;
  }
  label[for="quantity"] {
    position: absolute;
    width: 100%;
    top: 7.5vh;
    text-align: center;
    font-size: 10vh;
    line-height: 10vh;
    z-index: 15;
    font-weight: 100;
  }
  #quantity {
    position: absolute;
    top: 20vh;
    left: 50%;
    transform: translateX(-50%);
    z-index: 15;
    width: 30vh;
    &::-ms-track {
      width: 30vh;
      background: transparent;
      border-color: transparent;
      color: transparent;
    }
    &::-webkit-slider-thumb {
      -webkit-appearance: none;
      width: 3vh;
      height: 4.5vh;
      border-radius: 1.25vh;
      margin-top: -2.25vh;
      box-shadow: 0.25vh 0.25vh 1vh rgba(#000, 0.25);
    }
    &::-moz-range-thumb {
      width: 3vh;
      height: 4.5vh;
      border: none;
      border-radius: 1.25vh;
      box-shadow: 0.25vh 0.25vh 1vh rgba(#000, 0.25);
    }
    &::-ms-thumb {
      width: 3vh;
      height: 4.5vh;
      border-radius: 1.25vh;
      box-shadow: 0.25vh 0.25vh 1vh rgba(#000, 0.25);
    }
    &::-webkit-slider-runnable-track {
      width: 100%;
      height: 0.5vh;
      border-radius: 0.25vh;
      margin-top: -0.25vh;
    }
  }
  #table {
    position: absolute;
    border: none;
    background: none;
    font-size: 2.5vh;
    line-height: 2.5vh;
    height: 2.5vh;
    left: 5vh;
    bottom: 11.25vh;
    option {
      background: transparent !important;
    }
  }
  #back, #submit {
    position: absolute;
    border: none;
    background: none;
    font-weight: 500;
    text-transform: uppercase;
    cursor: pointer;
  }
  #submit {
    right: 5vh;
    bottom: 11.25vh;
    font-size: 2.5vh;
  }
  #back {
    right: 5vh;
    bottom: 6vh;
    font-size: 2.5vh;
  }
  
  @for $i from 1 through 4 {
    &.opt#{$i} {
      background:
        radial-gradient(circle at top left,
        nth($colors, $i+2), nth($colors, $i+2),
        darken(nth($colors, $i+2), 8%));
      #quantity::-webkit-slider-thumb {
        background:
          linear-gradient(-45deg,
          darken(nth($colors, ($i+2)%6+1), 15%),
          nth($colors, ($i+2)%6+1));
      }
      #quantity::-moz-range-thumb {
        background:
          linear-gradient(-45deg,
          darken(nth($colors, ($i+2)%6+1), 15%),
          nth($colors, ($i+2)%6+1));
      }
      #quantity::-ms-thumb {
        background:
          linear-gradient(-45deg,
          darken(nth($colors, ($i+2)%6+1), 15%),
          nth($colors, ($i+2)%6+1));
      }
      #quantity::-webkit-slider-runnable-track {
        background: nth($colors, ($i+4)%6+1);
      }
      #quantity::-moz-range-track {
        background: nth($colors, ($i+4)%6+1);
      }
      #quantity::-ms-track {
        background:
          linear-gradient(to bottom,
          transparent 0%, transparent 55%,
          nth($colors, ($i+4)%6+1) 55%,
          nth($colors, ($i+4)%6+1) 65%,
          transparent 65%, transparent 100%);
      }
      #table {
        color: nth($colors, $i+1);
        option {
          color: nth($colors, ($i+4)%6+1);
        }
      }
      #back, #submit, label {
        color: nth($colors, ($i+4)%6+1);
      }
    }
  }
}

/* info panels for each beer */
.panel {
  position: relative;
  flex-grow: 1;
  transition: all $animation-time ease;
  transition-delay: 0s;
  .price {
    font-size: 0;
  }
  .name, .type, .price, .abv {
    position: absolute;
    transition: all $animation-time ease;
    transition-delay: 0;
  }
  .name {
    left: 5vh;
    top: 50%;
    margin-top: -2.5vh;
    font-size: 5vh;
    line-height: 5vh;
    font-weight: 300;
  }
  .type {
    left: 5vh;
    top: 50%;
    margin-top: 2.5vh;
    font-size: 0;
    line-height: 2.5vh;
    font-weight: 100;
  }
  .price {
    top: 50%;
    left: 5vh;
    margin-top: 20vh;
    line-height: 2.5vh;
    font-weight: 500;
  }
  .abv {
    top: 50%;
    right: 5vh;
    font-size: 2.5vh;
    line-height: 2.5vh;
    font-weight: 500;
  }
  /* the icon for this beer (initially invisible) */
  svg {
    position: absolute;
    left: 1vh;
    top: 50%;
    margin-top: -10vh;
    height: 20vh;
    fill: none;
    stroke-width: 2%;
    stroke-linejoin: round;
    stroke-linecap: round;
    opacity: 0;
    transition: all $animation-time ease;
    transition-delay: 0s;
  }
  /* each panel has its own color scheme */
  @for $i from 1 through 4 {
    &:nth-of-type(#{$i}) {
      z-index: 10 - $i;
      background:
        radial-gradient(circle at top left,
        nth($colors, $i+1), nth($colors, $i+1),
        darken(nth($colors, $i+1), 8%));
      filter: drop-shadow(0 0 1vh darken(nth($colors, $i+2), 20%));
      h1, h2, h3 {
        color: nth($colors, $i+2);
      }
      .price {
        color: nth($colors, $i+2);
      }
      .abv {
        color: nth($colors, $i);
      }
      svg {
        stroke: nth($colors, $i);
      }
    }
  }
}

/* panels get larger and show more info when you hover over them */
.panel:hover {
  flex-grow: 2;
  .name {
    left: 15vh;
    margin-top: -3.75vh;
  }
  .type {
    left: 15vh;
    margin-top: 1.75vh;
    font-size: 2.5vh;
  }
  .abv {
    margin-top: 1.25vh;
  }
  svg {
    opacity: 1;
    transition-delay: $animation-time;
  }
}

/* when you click on a panel, the others are hidden */
.panel.hidden {
  flex-grow: 0.0000000001;
  * {
    opacity: 0;
    pointer-events: none;
  }
}

/* when you click on a panel, it becomes active */
.panel.active {
  flex-grow: 1;
  transition-delay: 0s;
  svg {
    transition-delay: 0s;
    height: 15vh;
    margin-top: 0;
    left: 2.5vh;
    opacity: 1;
  }
  .name, .type, .abv, .price {
    transition-delay: 0s;
  }
  .name {
    left: 15vh;
    margin-top: 5vh;
    font-size: 7.5vh;
    font-weight: 100;
  }
  .type {
    font-size: 0;
  }
  .abv {
    margin-top: 20vh;
  }
  .price {
    font-size: 2.5vh;
  }
  @for $i from 1 through 4 {
    &:nth-of-type(#{$i}) {
      .name, .abv {
        color: nth($colors, ($i+4)%6+1);
      }
      svg {
        stroke: nth($colors, ($i+2)%6+1);
      }
    }
  }
}

@media (orientation: landscape) {
  /* put a blurred image in the background, just for pretty presentation */
  body::before {
    content: '';
    display: block;
    height: 100vh;
    width: 100%;
    background: url('http://lorempixel.com/640/480/food') center/cover;
    filter: blur(5vh);
    transform: scale(1.2);
    opacity: 0.4;
  }
}

@media (orientation: portrait) {
  #menu {
    border-radius: 0;
    width: 100%;
    height: 100vh;
  }
}
!

JS 

              
                $('.panel').click(function() {
  if(!$(this).hasClass('active')) {
    var index = $(this).index();
    $('#order').removeClass();
    $('#order').addClass('opt'+(index+1));
    $('#choice').get(0).selectedIndex = index;
    $(this).siblings().addClass('hidden');
    $(this).addClass('active');
    $('#order').delay(800).slideToggle(400);
  }
});

$('#back').click(function(e) {
  $('#order').slideToggle(400);
  var self = this;
  setTimeout(function() {
    $('.panel').removeClass('hidden active');
  }, 400);
  e.preventDefault();
});

$('#submit').click(function(e) {
  e.preventDefault();
});

$('#quantity').on('input change', function() {
  var qv = $('#quantity').val();
  if(qv % 1 != 0) {
    qv = parseInt(qv, 10);
    if(qv == 0) qv = "";
    qv += "½";
  }
  $('label[for="quantity"]').text(qv);
  // TODO: update the price as well
})
!
999px

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