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CSS

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HTML

              
                .bus
  .body
    .top
      .windows
        each val in [1, 2, 3, 4, 5, 6]
          .window
      .sign
        .flag
          each val in [1, 2, 3, 4, 5]
            .line
        .text LONDON BUS
      .number 123
    .yellow-line
    .bottom
      .upper
      .lower
      .headlight
      .mirror
      .staircase
        .pole
        .handle
        .steps
          each val in [1, 2, 3, 4]
            .step
      .windows
        .window
          .steering-wheel T
        each val in [1, 2, 3, 4]
          .window
  .wheels
    .wheel
    .wheel
              
            
!

CSS

              
                $color-red: #f81e15;
$color-black: #26272d;
$color-blue: #9cd8f4;
$color-yellow: #f0c252;
$color-gray: #9c9c9c;

html, body {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: $color-blue;
  background-position: 270px -140px;
  background-size: 720px;
  background-repeat: none;
  font-family: 'Open Sans', sans-serif;
}

.bus {
  width: 560px;
  height: 325px;
  position: relative;
  
  .body {
    width: 100%;
    height: 100%;
    
    .top {
      background-color: $color-red;
      border-radius: 50px 50px 0 0;
      height: 140px;
      width: 100%;
      top: 0;
      position: absolute;
      
      .windows {
        display: flex;
        justify-content: space-between;
        position: absolute;
        width: 520px;
        top: 15px;
        left: 20px;

        .window {
          box-shadow: 
            0 0 0 3px rgba($color-black, 0.3), 
            inset -5px 5px 0 rgba($color-black, 0.1);
          background-image: linear-gradient(
            35deg, 
            $color-blue 0%,
            $color-blue 30%,
            lighten($color-blue, 5%) 30%,
            lighten($color-blue, 5%) 40%,
            $color-blue 40%,
            $color-blue 45%,
            lighten($color-blue, 5%) 45%,
            lighten($color-blue, 5%) 70%,
            $color-blue 70%,
          );
          width: 72px;
          height: 40px;
          border-radius: 8px;

          &:first-child {
            border-top-left-radius: 30px;
            width: 92px;
          }

          &:last-child {
            border-top-right-radius: 30px;
          }
        }
      }
    }
    
    .sign {
      display: flex;
      position: absolute;
      top: 73px;
      left: 20px;
      background-color: $color-gray;
      width: 435px;
      height: 50px;
      border-radius: 5px;
      box-shadow: 0 0 0 3px rgba($color-black, 0.3);
      overflow: hidden;
      
      .flag {
        position: relative;
        height: 100%;
        width: 105px;
        background-color: #212a8c;
        overflow: hidden;
        box-shadow: 3px 0 0 rgba($color-black, 0.3);
        
        .line {
          background-color: $color-red;
          position: absolute;
          left: -20%;
          width: 140%;
          height: 8px;
          border: 5px solid white;
          
          &:nth-child(1) {
            top: -20px;
            transform-origin: 0 0;
            transform: rotate(26deg)
          }
          
          &:nth-child(2) {
            bottom: -20px;
            transform-origin: 0 0;
            transform: rotate(-26deg);
          }
          
          &:nth-child(3) {
            top: 16px;
            height: 11px;
            border-width: 4px;
            transform-origin: 0 0;
          }
          
          &:nth-child(4) {
            left: -25px;
            height: 11px;
            border-width: 4px;
            transform: rotate(90deg);
          }
          
          &:nth-child(5) {
            top: 20px;
            height: 11px;
            border: none;
          }
        }
      }
      
      .text {
        display: flex;
        align-items: center;
        justify-content: center;
        flex: 1;
        font-size: 42px;
        letter-spacing: 2px;
        color: white;
      }
    }
    
    .number {
      position: absolute;
      top: 96px;
      right: 20px;
      color: white;
      background-color: $color-black;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 72px;
      height: 25px;
      border-radius: 5px;
      font-size: 20px;
      letter-spacing: 2px;
      box-shadow: 0 0 0 3px rgba($color-black, 0.3);
    }
    
    .yellow-line {
      width: 102%;
      height: 12px;
      position: absolute;
      top: 133px;
      left: -1%;
      background-image: linear-gradient(
        $color-yellow 0%, 
        $color-yellow 20%, 
        lighten($color-yellow, 20%) 20%,
        lighten($color-yellow, 20%) 45%,
        $color-yellow 50%
      );
      border-radius: 5px;
    }
    
    .bottom {
      position: absolute;
      top: 145px;
      width: 100%;
      
      .upper {
        position: absolute;
        background-color: $color-red;
        width: 520px;
        right: 0;
        height: 60px;
      }
      
      .lower {
        position: absolute;
        background-color: $color-red;
        width: 100%;
        height: 75px;
        top: 60px;
        border-bottom: 5px solid $color-black;
        border-radius: 50px/20px 0 0 0;
      }
      
      .headlight {
        position: absolute;
        width: 6px;
        height: 20px;
        background-color: $color-yellow;
        top: 100px;
        left: -3px;
        border-radius: 3px;
      }
      
      .mirror {
        position: absolute;
        width: 10px;
        height: 30px;
        background-color: $color-black;
        top: 5px;
        left: 7px;
        border-radius: 2px;
        
        &::before {
          content: '';
          position: absolute;
          border-left: 3px solid $color-black;
          border-bottom: 3px solid $color-black;
          border-radius: 0 0 0 4px;
          width: 5px;
          height: 15px;
          left: -5px;
          top: -6px;
        }
      }
      
      .staircase {
        position: absolute;
        background-color: darken($color-red, 10%);
        width: 70px;
        height: 130px;
        top: 5px;
        right: 0;
        border-left: 6px solid darken($color-red, 10%);
        border-radius: 30px 0 0 0;
        
        .pole {
          position: absolute;
          right: 23px;
          width: 7px;
          height: 100%;
          background-color: lighten($color-gray, 10%);
          z-index: 1;
        }
        
        .handle {
          position: absolute;
          border: 3px solid lighten($color-gray, 10%);
          border-left-color: transparent;
          border-radius: 5px;
          height: 40px;
          width: 5px;
          top: 30px;
          left: -8px;
          z-index: 1;
        }
        
        .steps .step {
          position: absolute;
          background-color: $color-red;
          border-top: 2px solid $color-gray;
          height: 20px;
          
          &:nth-child(1) {
            bottom: 0;
            width: 60px;
          }
          
          &:nth-child(2) {
            bottom: 22px;
            width: 50px;
          }
          
          &:nth-child(3) {
            bottom: 44px;
            width: 35px;
          }
          
          &:nth-child(4) {
            bottom: 66px;
            width: 15px;
          }
        }
      }
      
      .windows {
        display: flex;
        justify-content: space-between;
        position: absolute;
        width: 405px;
        top: 12px;
        left: 50px;

        .window {
          box-shadow: 
            0 0 0 3px rgba($color-black, 0.3), 
            inset -5px 5px 0 rgba($color-black, 0.1);
          background-image: linear-gradient(
            35deg, 
            $color-blue 0%,
            $color-blue 30%,
            lighten($color-blue, 5%) 30%,
            lighten($color-blue, 5%) 40%,
            $color-blue 40%,
            $color-blue 45%,
            lighten($color-blue, 5%) 45%,
            lighten($color-blue, 5%) 70%,
            $color-blue 70%,
          );
          width: 72px;
          height: 40px;
          border-radius: 8px;
          
          &:first-child {
            border-radius: 50px/0 15px 0 0;
            overflow: hidden;
            
            .steering-wheel {
              color: lighten($color-black, 20%);
              font-size: 50px;
              transform: rotate(50deg) translate(15px, 28px);
            }
          }
        }
      }
    }
  }
  
  .wheels {
    .wheel {
      width: 100px;
      height: 50px;
      position: absolute;
      background-color: lighten($color-black, 10%);
      border-radius: 30px/50px 50px 0 0;
      bottom: 40px;
      
      &::before {
        content: '';
        position: absolute;
        border-radius: 100%;
        background-image: radial-gradient(
          $color-red 0%,
          $color-red 20%,
          #797e77 20%,
          #797e77 37%,
          $color-red 37%,
          $color-red 43%,
          $color-black 43%
        );
        top: 5px;
        left: 7px;
        width: 85px;
        height: 85px;
      }
      
      &:first-child {
        left: 15px;
      }
      
      &:last-child {
        right: 85px;
      }
    }
  }
}
              
            
!

JS

              
                // A pure CSS London bus, based on Ekaterina
// Ushakova's design (https://www.123rf.com/photo_137888403_stock-vector-london-city-bus-on-blue-backgound-red-double-decker-bus-with-british-flag-on-it-side-view-vector-ill.html)
//
// I created this pure CSS bus as a way to
// improve my CSS skills. Every additional detail 
// introduces another challenge, and CSS offers 
// a variety of ways to overcome them.
              
            
!
999px

Console