The Flying Robot (Pure CSS Drawing/Animation) [codepen challenge]

index.html

<div class="container">
  <div class="spaceship">
    <div id="star1"></div>
    <div id="star2"></div>
    <div id="star3"></div>
    <div class="robot">
      <div id="half">
        <div id="brain"></div>
      </div>
      <div id="head">
        <span id="lc"></span><span id="le"></span><span id="re"></span>
        <div id="mouth"></div>
        <span id="rc"></span>
      </div>
      <div id="foot"></div>
      <div id="leg-1"></div>
      <div id="leg-2"></div>
    </div>
    <div class="spaceship_top"></div>
    <div class="spaceship_middle">
      <div class="spaceship_balls_1"></div>
      <div class="spaceship_balls_2"></div>
      <div class="spaceship_balls_3"></div>
      <div class="spaceship_balls_4"></div>
      <div class="spaceship_balls_5"></div>
    </div>
    <div class="spaceship_bottom">
      <div class="abduct_hole1"></div>
      <div class="abduct_hole2"></div>
      <div class="abduct_hole3"></div>
      <div class="abduct_hole4"></div>
      <div class="abduct_hole5"></div>
    </div>
  </div>
</div>

script.js

// No JS. Thanks for visiting!
// Thanks to @Aleks for robot divs
// If you enjoy make sure to ♥ this codepen!
// Not tested on mobile.

style.less

@dimension: 100px;

* {
  margin: 0 auto;
  -webkit-user-select: none;
}

body {
  height: 100vh;
  overflow: hidden;
  animation: bodycolor 16s infinite;
}

.centered() {
  margin: auto;
  position: absolute;
  bottom: 0;
  left: 0;
  top: 0;
  right: 0;
}

.container {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.spaceship {
  position: absolute;
  top: 30%;
  height: 250px;
  width: 300px;
  margin-left: -150px;
  animation: spaceshipleft 8s infinite;
}

.spaceship_top {
  .centered();
  top: -150px;
  height: 150px;
  width: 200px;
  background-color: #f6a7ba;
  border-radius: 8rem 8rem 0 0;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_top::before {
  content: "";
  position: absolute;
  left: 150px;
  top: 32px;
  height: 8px;
  width: 10px;
  background-color: white;
  border-radius: 2rem;
  transform: rotate(42deg);
}

.spaceship_top::after {
  content: "";
  position: absolute;
  left: 130px;
  top: 20px;
  height: 10px;
  width: 20px;
  background-color: white;
  border-radius: 2rem;
  transform: rotate(32deg);
}

.spaceship_middle {
  .centered();
  width: 300px;
  height: 70px;
  overflow: hidden;
  border-radius: 5rem;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
  z-index: 3;
  animation: colorswap_middle 16s infinite;
}

.spaceship_bottom {
  .centered();
  top: 75px;
  width: 165px;
  height: 30px;
  background-color: #9c0327;
  border-radius: 0 0 2rem 2rem;
  z-index: -1;
  box-shadow: inset 5px 2px 3px 0 #c2c2c2;
  z-index: 2;
}

.abduct_hole1 {
  position: absolute;
  left: 32px;
  border: 2px solid white;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0);
  width: 100px;
  height: 100px;
  transform: rotateX(75deg);
  animation: abduct 8s infinite, abductcolor 16s infinite;
}

.abduct_hole2 {
  position: absolute;
  left: 32px;
  top: 20px;
  border: 2px solid white;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0);
  width: 100px;
  height: 100px;
  transform: rotateX(75deg);
  animation: abductreverse 8s 0.1s infinite, abductcolor 16s infinite;
}

.abduct_hole3 {
  position: absolute;
  left: 32px;
  top: 35px;
  border: 2px solid white;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0);
  width: 100px;
  height: 100px;
  transform: rotateX(75deg);
  animation: abduct 8s 0.2s infinite, abductcolor 16s infinite;
}

.abduct_hole4 {
  position: absolute;
  left: 30px;
  top: 50px;
  border: 2px solid white;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0);
  width: 100px;
  height: 100px;
  transform: rotateX(75deg);
  animation: abductreverse 8s infinite, abductcolor 16s infinite;
}

.abduct_hole5 {
  position: absolute;
  left: 32px;
  top: 70px;
  border: 2px solid white;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0);
  width: 100px;
  height: 100px;
  transform: rotateX(75deg);
  animation: abductreverse 8s infinite, abductcolor 16s infinite;
}

.spaceship_balls_1 {
  position: absolute;
  top: 10px;
  height: 50px;
  width: 50px;
  border-radius: 50%;
  animation: moveleft 3s linear infinite, colorswap 16s infinite;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_1::before {
  content: "";
  position: absolute;
  top: 0;
  left: 60px;
  background-color: inherit;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_1::after {
  content: "";
  position: absolute;
  top: 0;
  left: 120px;
  background-color: inherit;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_2 {
  position: absolute;
  top: 10px;
  height: 50px;
  width: 50px;
  left: 360px;
  border-radius: 50%;
  animation: moveleft 3s linear 0.64s infinite, colorswap 16s infinite;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_2::before {
  content: "";
  position: absolute;
  top: 0;
  left: 60px;
  background-color: inherit;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_2::after {
  content: "";
  position: absolute;
  top: 0;
  left: 120px;
  background-color: inherit;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_3 {
  position: absolute;
  top: 10px;
  height: 50px;
  width: 50px;
  left: 720px;
  border-radius: 50%;
  animation: moveleft 3s linear 1.28s infinite, colorswap 16s infinite;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_3::before {
  content: "";
  position: absolute;
  top: 0;
  left: 60px;
  background-color: inherit;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_3::after {
  content: "";
  position: absolute;
  top: 0;
  left: 120px;
  background-color: inherit;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_4 {
  position: absolute;
  top: 10px;
  height: 50px;
  width: 50px;
  left: 1080px;
  border-radius: 50%;
  animation: moveleft 3s linear 1.92s infinite, colorswap 16s infinite;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_4::before {
  content: "";
  position: absolute;
  top: 0;
  left: 60px;
  background-color: inherit;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_4::after {
  content: "";
  position: absolute;
  top: 0;
  left: 120px;
  background-color: inherit;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_5 {
  position: absolute;
  top: 10px;
  height: 50px;
  width: 50px;
  left: 1440px;
  border-radius: 50%;
  animation: moveleft 3s linear 2.56s infinite, colorswap 16s infinite;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_5::before {
  content: "";
  position: absolute;
  top: 0;
  left: 60px;
  background-color: inherit;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.spaceship_balls_5::after {
  content: "";
  position: absolute;
  top: 0;
  left: 120px;
  background-color: inherit;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: inset 6px 2px 3px 0 #c2c2c2;
}

.robot {
  text-align: center;
  width: @dimension * 3;
  position: absolute;
  left: 50%;
  margin-left: @dimension * 3 / -2;
  margin-top: @dimension * -2;
  transform: scale(0.25);
  z-index: 1;
  animation: robotup 16s infinite;
}

#half {
  text-align: center;
  width: @dimension * 3 - 20;
  height: @dimension * 2;
  background: #f16385;
  border: 10px solid #a62a48;
  border-top-left-radius: @dimension * 3;
  border-top-right-radius: @dimension * 3;
}
#brain {
  margin: 0 auto;
  margin-top: 20px;
  width: @dimension + 60;
  height: @dimension - 40;
  background: #f48aa3;
  border: 20px solid #d6365c;
  border-top-left-radius: @dimension * 2;
  border-top-right-radius: @dimension * 2;
}
#head {
  position: inherit;
  top: @dimension + 40;
  right: -10px;
  width: @dimension * 3 + 20;
  height: @dimension;
  background: #162736;
}
#foot {
  position: inherit;
  top: @dimension * 2 + 40;
  left: 10px;
  width: (@dimension * 2) + 80px;
  height: @dimension / 5;
  background: #162736;
}

#le {
  margin-top: 20px;
  margin-right: 10px;
  display: inline-block;
  width: @dimension / 3;
  height: @dimension / 3;
  border: 10px solid #d6365c;
  border-radius: 50%;
  background: #f8b1c2;
}
#re {
  margin-left: 10px;
  display: inline-block;
  width: @dimension / 3;
  height: @dimension / 3;
  border: 10px solid #d6365c;
  border-radius: 50%;
  background: #f8b1c2;
}
#lc {
  margin-right: 10px;
  display: inline-block;
  width: @dimension / 8;
  height: @dimension / 8;
  border-radius: 50%;
  background: #ee3d67;
  box-shadow: 0 0 5px rgba(255, 0, 102, 1);
  -webkit-box-shadow: 0 0 5px rgba(255, 0, 102, 1);
  -moz-box-shadow: 0 0 5px rgba(255, 0, 102, 1);
}
#rc {
  display: inline-block;
  width: @dimension / 8;
  height: @dimension / 8;
  border-radius: 50%;
  background: #ee3d67;
  box-shadow: 0 0 5px rgba(255, 0, 102, 1);
  -webkit-box-shadow: 0 0 5px rgba(255, 0, 102, 1);
  -moz-box-shadow: 0 0 5px rgba(255, 0, 102, 1);
}
#mouth {
  z-index: 9999;
  position: inherit;
  margin-top: 10px;
  margin-left: @dimension + 50;
  height: 10px;
  width: 20px;
  border-radius: 0 0 90px 90px;
  -moz-border-radius: 0 0 90px 90px;
  -webkit-border-radius: 0 0 90px 90px;
  border-right: 5px solid #ee3d67;
  border-left: 5px solid #ee3d67;
  border-bottom: 5px solid #ee3d67;
}

#leg-1 {
  display: inline-block;
  position: relative;
  top: @dimension - 40;
  left: 10px;
  width: @dimension;
  height: @dimension / 5;
  background: #162736;
  transform: rotate(60deg);
  -ms-transform: rotate(60deg); /* IE 9 */
  -webkit-transform: rotate(60deg); /* Safari and Chrome */
  border-top-right-radius: @dimension / 5;
  border-bottom-right-radius: @dimension / 5;
}

#leg-2 {
  display: inline-block;
  position: relative;
  top: @dimension - 40;
  left: 10px;
  width: @dimension;
  height: @dimension / 5;
  background: #162736;
  transform: rotate(-60deg);
  -ms-transform: rotate(-60deg); /* IE 9 */
  -webkit-transform: rotate(-60deg); /* Safari and Chrome */
  border-top-left-radius: @dimension / 5;
  border-bottom-left-radius: @dimension / 5;
}

#star1 {
  margin: 50px 0;
  position: relative;
  left: -100px;
  top: -100px;
  display: block;
  color: #ffd94d;
  width: 0px;
  height: 0px;
  border-right: 100px solid transparent;
  border-bottom: 70px solid #ffd94d;
  border-left: 100px solid transparent;
  transform: rotate(35deg) scale(0.15);
  z-index: 5;
  animation: starpopup 16s infinite;
}
#star1:before {
  border-bottom: 80px solid #ffd94d;
  border-left: 30px solid transparent;
  border-right: 30px solid transparent;
  position: absolute;
  height: 0;
  width: 0;
  top: -45px;
  left: -50px;
  display: block;
  content: "";
  transform: rotate(-35deg);
}
#star1:after {
  position: absolute;
  display: block;
  color: #ffd94d;
  top: 3px;
  left: -105px;
  width: 0px;
  height: 0px;
  border-right: 100px solid transparent;
  border-bottom: 70px solid #ffd94d;
  border-left: 100px solid transparent;
  transform: rotate(-70deg);
  content: "";
}

#star2 {
  margin: 50px 0;
  position: relative;
  left: 210px;
  top: -220px;
  display: block;
  color: #ffd94d;
  width: 0px;
  height: 0px;
  border-right: 100px solid transparent;
  border-bottom: 70px solid #ffd94d;
  border-left: 100px solid transparent;
  transform: rotate(35deg) scale(0.15);
  z-index: 5;
  animation: starpopup 16s infinite;
}
#star2:before {
  border-bottom: 80px solid #ffd94d;
  border-left: 30px solid transparent;
  border-right: 30px solid transparent;
  position: absolute;
  height: 0;
  width: 0;
  top: -45px;
  left: -65px;
  display: block;
  content: "";
  transform: rotate(-35deg);
}
#star2:after {
  position: absolute;
  display: block;
  color: #ffd94d;
  top: 3px;
  left: -105px;
  width: 0px;
  height: 0px;
  border-right: 100px solid transparent;
  border-bottom: 70px solid #ffd94d;
  border-left: 100px solid transparent;
  transform: rotate(-70deg);
  content: "";
}

#star3 {
  margin: 50px 0;
  position: relative;
  left: 45px;
  top: -410px;
  display: block;
  color: #ffd94d;
  width: 0px;
  height: 0px;
  border-right: 100px solid transparent;
  border-bottom: 70px solid #ffd94d;
  border-left: 100px solid transparent;
  transform: rotate(35deg) scale(0.15);
  z-index: 5;
  animation: starpopup 16s infinite;
}
#star3:before {
  border-bottom: 80px solid #ffd94d;
  border-left: 30px solid transparent;
  border-right: 30px solid transparent;
  position: absolute;
  height: 0;
  width: 0;
  top: -45px;
  left: -65px;
  display: block;
  content: "";
  transform: rotate(-35deg);
}
#star3:after {
  position: absolute;
  display: block;
  color: #ffd94d;
  top: 3px;
  left: -105px;
  width: 0px;
  height: 0px;
  border-right: 100px solid transparent;
  border-bottom: 70px solid #ffd94d;
  border-left: 100px solid transparent;
  transform: rotate(-70deg);
  content: "";
}

@keyframes starpopup{
  0% {opacity: 0; transform: rotate(35deg) scale(0.1);}
  20% {opacity: 0; transform: rotate(235deg) scale(0.1);}
  21% {opacity: 1; transform: rotate(-135deg) scale(0.1);}
  28% {opacity: 0; transform: rotate(-635deg) scale(0.1);}
  55% {opacity: 0; transform: rotate(135deg) scale(0.1);}
  70% {opacity: 0; transform: rotate(935deg) scale(0.1);}
  71% {opacity: 1; transform: rotate(-135deg) scale(0.1);}
  78% {opacity: 0; transform: rotate(-635deg) scale(0.1);}
  100% {opacity: 0;transform: rotate(35deg) scale(0.1);}
}

@keyframes robotup {
  0% {top: 80%;}
  20% {top: 80%;}
  25% {top: 43%;}
  50% {top: 44%;}
  70% {top: 44%;}
  75% {top: 80%;}
  100% {top: 80%;}
}

@keyframes abduct {
  0% {opacity: 0;}
  42% {opacity: 0;}
  43% {opacity: 0.8; transform: rotateX(75deg) translateY(0px);}
  45% { transform: rotateX(75deg) translateY(200px) scale(0.8); opacity: 0.8;}
  47% {transform: rotateX(75deg) translateY(0px); opacity: 0.8;}
  48% {opacity: 0;}
  100% {opacity: 0;}
}

@keyframes abductreverse {
  0% {opacity: 0;}
  42% {opacity: 0;}
  43% { opacity: 0.8; transform: rotateX(75deg) translateY(0px);}
  45% {opacity: 0.8; transform: rotateX(75deg) translateY(-100px);}
  48% {opacity: 0.8; transform: rotateX(75deg) translateY(0px);}
  49% {opacity: 0;}
  100% {opacity: 0;}
}

@keyframes moveleft {
  0% {left: 350px;}
  100% {left: -500px;}
}

@keyframes spaceshipleft {
  0% {transform: rotate(-10deg); left: 200%;}
  15% {transform: rotate(-10deg);}
  30% {left: 45%; transform: rotate(10deg);}
  40% {left: 50%; transform: rotate(0deg) translateY(0px);}
  45% {left: 50%; transform: rotate(0deg) translateY(-10px);}
  50% { left: 50%; transform: rotate(0deg) translateY(0px);}
  60% {left: 55%; transform: rotate(-10deg);}
  61% {left: 55%;}
  100% {left: -100%;}
}

@keyframes bodycolor {
  0% {background-image: linear-gradient(to top,#ee3d67,#ef466e,#f04f75,#f1567b,#f25e82);}
  20% {background-image: linear-gradient(to top,#ee3d67,#ef466e,#f04f75, #f1567b, #f25e82);}
  21% {background-image: linear-gradient(to right top, #ffffff, #f7f2fa, #f4e4f1,#f3d5e4,#f4c6d2);}
  70% {background-image: linear-gradient(to right top, #ffffff,#f7f2fa,#f4e4f1,#f3d5e4,#f4c6d2);}
  71% {background-image: linear-gradient(to top, #ee3d67, #ef466e, #f04f75, #f1567b, #f25e82);}
  100% {background-image: linear-gradient(to top, #ee3d67, #ef466e, #f04f75, #f1567b, #f25e82);}
}

@keyframes abductcolor {
  0% {border: 2px solid white;}
  20% {border: 2px solid white;}
  21% {border: 2px solid #ee3d67;}
  70% {border: 2px solid #ee3d67;}
  71% {border: 2px solid white;}
  100% {border: 2px solid white;}
}

@keyframes colorswap {
  0% {background-color: #ee3d67;}
  20% {background-color: #ee3d67;}
  21% {background-color: #fff;}
  70% {background-color: #fff;}
  71% {background-color: #ee3d67;}
  100% {background-color: #ee3d67;}
}

@keyframes colorswap_middle {
  0% {background-color: #fff;}
  20% {background-color: #fff;}
  21% {background-color: #ee3d67;}
  70% {background-color: #ee3d67;}
  71% {background-color: #fff;}
  100% {background-color: #fff;}
}

the-flying-robot-pure-css-drawing-animation-codepen-challenge.markdown

The Flying Robot (Pure CSS Drawing/Animation) [codepen challenge]

Pure CSS animation of a robot riding his UFO for the May 2019 codepen challenge

A Pen by Tucker Massad on CodePen.

License.