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HTML

              
                <div class="landscape">
  <div class="glow"></div>
</div>
<div class="yule">
  <div class="fire">
    <div class="flame"></div>
    <div class="flame"></div>
    <div class="flame"></div>
  </div>
  <div class="log"></div>
  <div class="glow"></div>
</div>
              
            
!

CSS

              
                @import compass

$color-landscape: rgba( 12, 35, 40, 1 )
$color-log: rgba( 49, 36, 15, 1 )
  
$color-flame-yellow: rgba( 255, 250, 55, 1 )
$color-flame-red: rgba( 255, 44, 14, 1 )
  
@include keyframes( cast-light )
  100% 
    @include translate( -5% , -2% )
  90%
    @include translate( 7% , 1% )
  76%
    @include translate( -5% , 1% )
  68%
    @include translate( 12% , -3% )
  60%
    @include translate( -6% , 1% )
  46%
    @include translate( 9% , -3% )
  32%
    @include translate( 7% , 1% )
  26%
    @include translate( -5% , -3% )
  16%
    @include translate( -9% , 1% )
  10%
    @include translate( 5% , 1% )
  0%
    @include translate( -5% , -2% )

@include keyframes( flicker )
  100%
    transform: rotate( 1deg ) skew( -2deg ) scale( 1 , 1 )
  84%
    transform: rotate( 2deg ) skew( -2deg ) scale( 0.8 )
  58%
    transform: rotate( 6deg ) skew( -3deg ) scale( 0.9 )
  36%
    transform: rotate( -4deg ) skew( 3deg ) scale( 1 )
  21%
    transform: rotate( 2deg ) skew( -3deg ) scale( 0.9 )
  0%
    transform: rotate( 0deg ) skew( 2deg ) scale( 1 , 1 ) 

html , body
  position: absolute
  overflow: hidden
  height: 100%
  width: 100%
  left: 0
  top: 0
  
body
  background-color: $color-landscape
  
.landscape
  overflow: hidden
  background-color: tint( $color-landscape , 5% )
  border-radius: 50%
  top: calc( 50% + 6vh )
  position: absolute
  bottom: -30vh
  right: -15vw
  left: -15vw
    
  .glow
    opacity: 0.35
    
.glow
  @include scale( 1.2 , 0.3 )
  position: absolute
  top: 7vh
  left: 50%
    
  &:before , &:after
    content: ""
    position: absolute
    margin-top: -1vh
    margin-left: -6vh
    border-radius: 50%
    width: 12vh
    height: 3vh
      
  &:after
    @include animation( cast-light 2s ease-in-out -0.2s infinite alternate none )
    box-shadow: 0 0 20vh 10vh $color-flame-red
    background-color: $color-flame-red

  &:before
    @include animation( cast-light 2.6s ease-in-out -0.4s infinite alternate none )
    box-shadow: 0 0 20vh 10vh $color-flame-yellow
    background-color: $color-flame-yellow
      
.yule
  @include transform( translate( -50% , -50% ) scale( 1 ))
  position: absolute
  margin-top: 6vh
  left: 50%
  top: 50%
  
  .glow
    @include transform( scale( 0.73 , 0.45 ) rotate( 180deg ))
    opacity: 0.35
    margin-top: -8vh
    z-index: 3
      
  .fire
    z-index: 2
    position: absolute
    top: -10vh
    left: -2.5vh
    
    .flame
      @include transform-origin( 50% , 90% )
      position: absolute
      border-bottom-right-radius: 6vh
      border-bottom-left-radius: 6vh
      border-right: 3vh solid transparent
      border-left: 3vh solid transparent
      opacity: 0.85
        
      &:nth-of-type( 1 )
        border-bottom: 7vh solid rgba( $color-flame-yellow , 0.5 )
        @include animation( flicker 1.1s ease-in-out -0.4s infinite alternate none )
        margin-left: -2vh
        margin-top: 2vh
          
        &:before
          @include animation( flicker 0.7s ease-in-out -0.2s infinite alternate none )
          margin-top: 0vh
          
        &:after
          @include animation( flicker 0.6s ease-in-out -1.2s infinite alternate none )
          margin-top: 3vh
          
      &:nth-of-type( 2 )
        border-bottom: 9vh solid rgba( $color-flame-yellow , 0.5 )
        @include animation( flicker 1.0s ease-in-out -0.9s infinite alternate none )
        margin-left: 0vh
        margin-top: 0vh
          
        &:before
          @include animation( flicker 0.9s ease-in-out -9.2s infinite alternate none )
          margin-top: 2vh
          
        &:after
          @include animation( flicker 0.5s ease-in-out -6.2s infinite alternate none )
          margin-top: 5vh
          
      &:nth-of-type( 3 )
        border-bottom: 8vh solid rgba( $color-flame-yellow , 0.5 )
        @include animation( flicker 1.3s ease-in-out -0.3s infinite alternate none )
        margin-left: 2vh
        margin-top: 1vh
          
        &:before
          @include animation( flicker 0.7s ease-in-out -1.2s infinite alternate none )
          margin-top: 1vh
          
        &:after
          @include animation( flicker 0.6s ease-in-out -2.2s infinite alternate none )
          margin-top: 4vh
      
      &:before , &:after
        content: ""
        position: absolute
        @include transform-origin( 50% , 90% )
          
      &:before
        margin-left: -2.5vh
        border-bottom-right-radius: 6vh
        border-bottom-left-radius: 6vh
        border-bottom: 7vh solid rgba( $color-flame-red , 0.25 )
        border-right: 2.5vh solid transparent
        border-left: 2.5vh solid transparent
        
      &:after
        margin-left: -1vh
        border-bottom-right-radius: 6vh
        border-bottom-left-radius: 6vh
        border-bottom: 4vh solid rgba( $color-flame-yellow , 0.3 )
        border-right: 1vh solid transparent
        border-left: 1vh solid transparent
  
  .log
    @include scale( 0.5 , 1 )
    position: absolute
    left: -25vh
    top: -2.5vh
    background-color: $color-log
    box-shadow: 0 1vh 12vh 1.5vh rgba( shade( $color-log , 30% ) , 0.75 ), 0 0vh 4vh 0vh rgba( shade( $color-log , 40% ) , 0.75 ) inset
    border-radius: 10vh
    position: absolute
    width: 50vh
    height: 10vh
    z-index: 1
      
    &:before
      content: ""
      background-color: tint( $color-log , 40% )
      box-shadow: 0 0 0 1vh tint( $color-log , 35% ) inset, 0 0 0 2vh tint( $color-log , 30% ) inset, 0 0 0 3vh tint( $color-log , 45% ) inset, 0 0 0 4vh tint( $color-log , 40% ) inset
      border-radius: 50%
      position: absolute
      opacity: 0.5
      height: 9vh
      width: 9vh
      left: 0.5vh
      top: 0.5vh
              
            
!

JS

              
                
              
            
!
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