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HTML

              
                <div class="sky column">
  <div class="stars row">
  <div class="rick column">
    <div class="rick-hair"></div>
    <div class="rick-head column">
      <div class="eyebrow"></div>
      <div class="eyes row">
        <div class="eye--right"></div>
        <div class="nose"></div>
        <div class="eye--left"></div>
      </div>
      <div class="mouth"></div>
    </div>
    <div class="rick-body row">
      <div class="arm arm--right">
        <div class="rayGun"></div>
      </div>
      <div class="torso">
        <div class="labCoat row">
          <div class="labCoat-side labCoat--right"></div>
          <div class="labCoat-opening"></div>
          <div class="labCoat-side labCoat--left"></div>
        </div>
      </div>
      <div class="arm arm--left"></div>
    </div>
    <div class="rick-belt row"></div>
    <div class="rick-legs row">
      <div class="rickLeg--right column">
        <div class="sock"></div>
        <div class="shoe"></div>
      </div>
      <div class="rickLeg--left column">
        <div class="sock"></div>
        <div class="shoe"></div>
      </div>
    </div>
  </div>
  </div>
  <div class="ground"></div>
</div>
              
            
!

CSS

              
                $floor: #3a0943;
$floor--accent: #8f29a8;
$space: #100037;
$border-color: #666;

// RICK
$rick--width: 7rem;
$rick-head--height: 30vh;
  $rick-eye--size: $rick-head--height / 2.5;
  $rick-eye--pupilSize: $rick-eye--size * .5;
$rick-body--height: 10vh;
$rick-leg--height: 10vh;

// clothes
$rick-belt--height: 1rem;
$rick--coat--length: $rick-body--height * 1.5;
  $collar--height: $rick-body--height * .3;
  $collar--width: $rick-body--height * .1;
          

// Colors 
$rick--skin: #decdbd;
$rick--hair: #b1daee;
$rick--coat: #f5f5f5;
$rick--shirt: #aae6e2;
$rick--belt: #352909;
$rick--pants: #7d6234;
$rayGun--green: #7fff50;

@mixin outline($fade:.1rem, $color: #000) {
  box-shadow: 0 0 $fade $color; }

@mixin border() {
    border: solid .2rem $border-color;}

.row { display: flex; }

.column {
  display: flex;
  flex-flow: column; }

.rick {
  justify-content: flex-end;
  align-items: center;
  position: relative;
  &-hair {
     position: absolute;
     bottom: $rick-leg--height + $rick-body--height;
     z-index: 1;
     background: $rick--hair;
     width: $rick-head--height * 1.1;
     height: $rick-head--height * 1.2;
     -webkit-transform: rotate(45deg);
     -moz-transform: rotate(45deg);
     -ms-transform: rotate(45deg);
     -o-transform: rotate(45deg);
     &:before {
       content: "";
       position: absolute;
       top: 0;
       left: 0;
       width: $rick-head--height * 1;
       height: $rick-head--height * 1.15;
       background: $rick--hair;
       -webkit-transform: rotate(145deg);
       -moz-transform: rotate(145deg);
       -ms-transform: rotate(145deg);
       -o-transform: rotate(145deg); }
     &:after {
       content: "";
       position: absolute;
       top: 0;
       left: 0;
       width: $rick-head--height * 1.1;
       height: $rick-head--height * 1.1;
       background: $rick--hair;
       -webkit-transform: rotate(-65deg);
       -moz-transform: rotate(-65deg);
       -ms-transform: rotate(-65deg);
       -o-transform: rotate(-65deg); }
   }
  &-head {
    z-index: 3;
    position: relative;
    @include outline(.8rem);
    background-color: $rick--skin;
    height: $rick-head--height;
    width: $rick-head--height;
    border-radius: $rick-head--height / 3;
    align-items: center;
    &:before,
    &:after { // Ears
      content: "";
      z-index: 0;
      position: absolute;
      bottom: $rick-head--height * .2;
      background-color: $rick--skin;
      height: $rick-head--height * .15;
      width: $rick-head--height * .15;
      border-radius: $rick-head--height; }
    &:before { right: 90%; border-left: solid .2rem $border-color; }
    &:after { left: 90%; border-right: solid .2rem $border-color; }
    
    .eyebrow {
      background-color: $rick--hair;
      width: $rick-head--height / 1.3;
      height: $rick-head--height / 12;
      border-radius: $rick-head--height;
      margin-top: $rick-head--height / 5;
      animation: browMove 5s ease-in-out alternate infinite;
      @include border; }
      .eyes {
        position: relative;
        & > div:not(.nose) { // Each eye
          @include border;
          background-color: #FFF;
          width: $rick-eye--size;
          height: $rick-eye--size;
          border-radius: $rick-head--height;
          position: relative;
          display: flex;
          justify-content: center;
          align-items: center;
          &:before { // Pupil
            content: "*";
            animation: lookAround 5s ease-in-out alternate infinite;
            position: absolute;
            top: 20%;
            left: 35%;
            font-size: $rick-eye--pupilSize;
            height: 4rem;
            line-height: 6rem;
            text-align: center;
            font-weight: bold; }
          &:after { // Bag under eyes
            content: "";
            position: absolute;
            top: 100%;
            height: $rick-eye--size / 12;
            width: $rick-eye--size / 2;
            border-bottom: solid .2rem $border-color;
            border-radius: 50% }
          }
      }
      .nose {
        position: absolute;
        bottom: 0;
        right: $rick-eye--size * .9;
        transform: rotate(-20deg);
        width: $rick-head--height * .1;
        height: $rick-head--height * .3;
        border-bottom: solid .3rem $border-color;
        border-radius: 60%;
        margin: $rick-head--height * -.05 0
      }
      .mouth {
        position: relative;
        border-top: solid .5rem darken($border-color,10);
        width: $rick-head--height / 2;
        height: $rick-head--height / 9;
        border-radius: 40%;
        margin-top: $rick-head--height / 9;
        &:before,
        &:after { // cheek wrinkles
          content: "";
          position: absolute;
          display: block;
          height: $rick-head--height / 15;
          width: $rick-head--height / 15;
          border-radius: 50%; }
        &:before {
          right: 90%;
          border-left: solid .2rem $border-color }
        &:after {
          left: 90%;
          border-right: solid .2rem $border-color }
      }
  }
  &-body {
    z-index: 2;
    overflow: visible;
    height: $rick-body--height;
    .arm {
      @include border;
      position: relative;
      border-top: none;
      width: $rick--width / 6;
      height: $rick-body--height * 1.3;
      margin-top: $rick-body--height * -.1;
      background-color: $rick--coat;
      &:after { // Hand
        content: "";
        @include border;
        background-color: $rick--skin;
        height: 1rem;
        left: -.3rem;
        right: -.3rem;
        position: absolute;
        top: 98%;
        border-radius: 1rem; }
      .rayGun {
        @include border;
        position: absolute;
        top: 100%;
        right: 100%;
        width: 1rem;
        height: 4rem;
        background-color: #CCC;
        border-top-left-radius: 1rem;
        border-top-right-radius: .1rem;
        &:before {
          content: '';
          z-index: 5;
          width: .5rem;
          height: .8rem;
          background-color: #000;
          @include border;
          position: absolute;
          top: -.5rem;
          right: 70%;
          transform: rotate(45deg);
        }
        &:after {
          content: '';
          @include border;
          z-index: 5;
          width: 2rem;
          height: 1.2rem;
          position: absolute;
          top: 40%;
          right: 100%;
          border-top-left-radius: 1rem;
          border-bottom-left-radius: 1rem;
          background-image:
          radial-gradient(
            circle closest-side,
            lighten($rayGun--green, 35),
            rgba($rayGun--green, .7)
          );
          animation: pulse .5s alternate infinite ease;
        }
      }
      &.arm--right {
            transform-origin: top;
            animation: aimAround 5s ease-in-out alternate infinite;
      }
    }
    .torso {
      @include outline(.4rem);
      background-color: $rick--shirt;
      height: $rick-body--height;
      width: $rick--width;
      position: relative;
      .labCoat {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        &-side {
          @include outline(1rem);
          z-index: 10;
          width: $rick--width * .3; // coat side widths
          background-color: $rick--coat;
          height: $rick--coat--length;
          position: relative;
          &:before { // collar
            content: '';
            position: absolute;
            background-color: lighten($rick--coat, 50);
            width: $collar--width;
            height: $collar--height;
          }
          &.labCoat--right {
            border-bottom-right-radius: 100%;
            &:before {
              border-bottom-left-radius: 100%;
              border-left: .2rem solid $border-color;
              right: 0; }
          }
          &.labCoat--left {
            border-bottom-left-radius: 100%;
            &:before {
              border-bottom-right-radius: 100%;
              border-right: .2rem solid $border-color;
              left: 0; }
          }
        }
        &-opening {
          // coat opening, showin undershirt
          background-color: $rick--shirt;
          flex-grow: 1;
          height: $rick-body--height * 1;
        }
      }
    }
  }
  &-belt {
    z-index: 1;
    background-color: $rick--belt;
    height: $rick-belt--height;
    width: $rick--width;
    justify-content: center;
    &:before {
      content: "";
      background-color: gold;
      height: $rick-belt--height;
      width: $rick-belt--height; }
  }
  &-legs {
    z-index: 1;
    height: $rick-leg--height;
    width: $rick--width;
    justify-content: space-between;
    border-top: solid $rick-leg--height / 8 $rick--pants;
    position: relative;
    &:after { // coat tail behind him
      content: '';
      position: absolute;
      top: 0;
      right: $rick--width * .3;
      left: $rick--width * .3;
      height: $rick-body--height * .265;
      background-color: darken($rick--coat,30);
      box-shadow: inset 0 .5rem 1.2rem rgba(0,0,0,.8);
    }
    & > div {
      background-color: $rick--pants;
      height: $rick-leg--height;
      width: $rick--width * .3;
      justify-content: flex-end;
      margin-top: -.1rem;
      .sock {
        background-color: #FFF;
        height: 1rem;
        width: 100%;
        box-shadow: inset 0 0 1rem rgba(0,0,0,.6) }
      .shoe {
        margin-top: -.5rem;
        background-color: #444;
        height: 1rem;
        width: $rick--width / 1.8;
        padding: .5rem;
        border-top-right-radius: 70%;
        border-bottom: solid .2rem tan;
      }
    }
  }
  .rickLeg--right .shoe {
    transform: rotateX(0deg) rotateY(180deg);
    transform-origin: $rick--width * .15;
  }
}

.stars {
  min-height: 80vh;
  background-color: $space;
  justify-content: center;
  align-items: flex-end;
  padding-bottom: 3rem; // bump Rick up, pull stars down to offset ground roundness
  margin-bottom: -3rem; }

.ground { 
  background-color: $floor; 
  min-height: calc(20vh + 3rem); 
  z-index: 1000;
  position: relative;
  border-top: solid .2rem $floor--accent;
  border-top-right-radius: 50%;
  border-top-left-radius: 50%;
  margin: 0 -50vw;
  &:before {
    content: '';
    position: absolute;
    display: block;
    width: 10vw;
    top: 2rem;
    left: 1rem;
    height: .3rem;
    border-radius: 1rem;
    background-color: rgba(255,255,255,0);
    $numberOflines: 20; // How many lines on the ground
    $axisLength--X: 100; // How many vw the star grid goes on the X Axis
    $axisLength--Y: 20; // How many vh the star grid goes on the Y Axis
    $opacity: random(5) * .1; // Randomize the opacity
    $adjustedAccentColor: rgba($floor--accent, $opacity);
    $boxShadow: 20rem 1rem 0 $adjustedAccentColor;

    @for $n from 1 through $numberOflines {
      $boxShadow: #{$boxShadow} #{","} #{random($axisLength--X)}vw #{random($axisLength--Y)}vh 0 0 $adjustedAccentColor; 
    }
    
    box-shadow: #{$boxShadow};
  }
}

// Star stuff

$solarSystemSpeedThroughUniverse: 100s;
$numberOfStars: 100; // How many stars you want
$axisLength--X: 200; // How many rems the star grid goes on the X Axis
$axisLength--Y: 100; // How many rems the star grid goes on the Y Axis
$starColor: #8eea3d; // color of the stars

$base--size: 3.5rem;

.stars {
  z-index: 0;
  &:before {
    position: absolute;
    width: $base--size;
    height: $base--size;
    content: '';
    border-radius: $base--size / 2; }
  &:before { // stars
    $boxShadow: 70rem 40rem .08rem -0.02rem $starColor; // I just set up one initial star, then concatinate to it on the loop

    // Loop through and create stars, we devide by two because we create two per loop. One on the -x axis, on on +x;
    @for $n from 1 through $numberOfStars / 2 {
      // Set variables for the star when we hit each loop
      $scale: random(3) * -.05; // Randomize the scale
      $blur: random(1) / 50;
      $opacity: random(8) * .1; // Randomize the opacity
      $adjustedStarColor: rgba($starColor, $opacity);
      
      // Here, we define two stars in each loop.. one for the -x margin (left of sun) and one for the right side (positive x)
      // box-shadow: X-axis Y-axis Blur size (-0.01 -- -0.09) , 
         $boxShadow: #{$boxShadow} #{","} -#{random($axisLength--X)}rem #{random($axisLength--Y)}rem #{$blur}rem #{$scale}rem $adjustedStarColor , #{random($axisLength--X)}rem #{random($axisLength--Y)}rem #{$blur}rem #{$scale}rem $adjustedStarColor ;
         $boxShadow: #{$boxShadow} #{","} -#{random($axisLength--X)}rem -#{random($axisLength--Y)}rem #{$blur}rem #{$scale}rem $adjustedStarColor , #{random($axisLength--X)}rem -#{random($axisLength--Y)}rem #{$blur}rem #{$scale}rem $adjustedStarColor ;
    }

      box-shadow: #{$boxShadow};
      
      // Call animation to spin stars
      -webkit-animation: spin $solarSystemSpeedThroughUniverse linear infinite;
      -moz-animation: spin $solarSystemSpeedThroughUniverse linear infinite;
      -ms-animation: spin $solarSystemSpeedThroughUniverse linear infinite;
      animation: spin $solarSystemSpeedThroughUniverse linear infinite;
  } // before (stars)
}


// CSS ANIMATIONS

@keyframes lookAround {
  0% {
    top: 20%;
    left: 35%;
  } 
  10% {
    top: 20%;
    left: 35%;
  } 
  13% {
    top: 20%;
    left: 70%;
  }
  30% {
    top: 20%;
    left: 65%;
  }
  33% {
    top: 20%;
    left: 15%;
  }
  50% {
    top: 20%;
    left: 15%;
  }
  53% {
    top: 10%;
    left: 15%;
  }
  80% {
    top: 5%;
    left: 35%;
  }
  90% {
    top: 7%;
    left: 35%;
  }
  92% {
    top: 20%;
    left: 35%;
  }
  100% {
    top: 20%;
    left: 35%;
  }
}

@keyframes browMove {
  0% {
    transform: rotate(0deg);
  } 
  10% {
    transform: rotate(0deg);
  } 
  13% {
    transform: rotate(-2deg);
  }
  30% {
    transform: rotate(0deg);
  }
  33% {
    transform: rotate(0deg) rotate(2deg);
  }
  50% {
    transform: rotate(0deg);
  }
  53% {
    transform: rotate(0deg);
  }
  80% {
    transform: rotate(0deg) translateY(-15%);
  }
  90% {
    transform: rotate(0deg);
  }
  92% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

@keyframes aimAround {
  0% {
    transform: rotate(0deg);
  } 
  10% {
    transform: rotate(0deg);
  } 
  13% {
    transform: rotate(-4deg);
  }
  30% {
    transform: rotate(0deg);
  }
  33% {
    transform: rotate(0deg) rotate(95deg);
  }
  45% {
    transform: rotate(0deg) rotate(100deg);
  }
  50% {
    transform: rotate(0deg);
  }
  53% {
    transform: rotate(0deg);
  }
  80% {
    transform: rotate(0deg);
  }
  90% {
    transform: rotate(0deg);
  }
  92% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

@-webkit-keyframes spin {
  from { transform: rotate(0); }
  to { transform: rotate(360deg); }
}
@keyframes spin {
  from { transform: rotate(0); }
  to { transform: rotate(360deg); }
}
@keyframes pulse {
  from { opacity: .6 }
  to { opacity: 1 }
}

html { font-size: 62.5%; font-family: helvetica, arial, sans-serif }
body { margin: 0; overflow: hidden; }
              
            
!

JS

              
                
              
            
!
999px

Console