friends-commented.css

body {
  /* backgrounds can be more than colors. they can be images, or even gradients using this complicated-ass syntax. and these gradients can be heavily abused to make wacky patterns */
  background: linear-gradient(90deg, rgba(183,230,201,1) 0%, rgba(155,208,236,0.5913173652694611) 100%);
  margin: 64px;
}

/* this means: 'select all elements that have any of these classes' */
.friend-one, .friend-two, .star, .normie {
  width: 200px;
  height: 200px;

  /* for elements that have any of these classes, ensure any animations run forever */
  animation-iteration-count: infinite; 
}

.friend-one {
  /* set the background of an element as an image */
  background-image: url("friend-one.jpg");
  /* ensure the background image is a 'best-fit', always filling the frame with content */
  background-size: cover;
  /* what creates the circle shape; round the corners all the way, equivalent in this case to `border-radius: 100px;` */
  border-radius: 100%;

  /* give this class an animation named 'spin-dog' */
  animation-name: spin-dog;
  /* make that animation last 2 seconds */
  animation-duration: 2s;
}

/* define the animation named 'spin-dog' */
@keyframes spin-dog {
  /* set the styles at the starting keyframe */
  from {
    /* rotate the element N degrees */
    transform: rotate(0deg);
  }
  /* set the styles at the ending keyframe */
  to {
    transform: rotate(360deg);
  }
}

.friend-two {
  background-image: url("friend-two.jpg");
  background-size: cover;
  transform: rotate(-45deg);

  animation-name: bounce-twist;
  animation-duration: 3s;
}

@keyframes bounce-twist {
  from {
    /* multiple `transform` properties can be defined at once. `scale` makes things bigger or smaller, by multiplying the size by N */
    transform: scale(0.9) rotate(-30deg);
  }
  /* in addition to `from` and `to`, you can set a percentage of how far through the animation another set of style changes should happen */
  50% {
    transform: scale(1.1) rotate(-15deg);
  }
  to {
    transform: scale(0.9) rotate(-30deg);
  }
}

.star {
  /* the .star is an SVG graphic, so background-color doesn't apply -- it responds to 'fill', a graphics-design term */
  fill: cyan;

  animation-name: bisexual-lighting;
  animation-duration: 10s;
}

@keyframes bisexual-lighting {
  from {
    fill: cyan;
  }
  50% {
    fill: magenta;
  }
  to {
    fill: cyan;
  }
}

.normie {
  color: white;
  font-weight: bold;
  font-size: 24px;
  font-family: sans-serif;
  background-color: gray;
  /* set a solid-style white border, 6 pixels wide */
  border: 6px solid white;
  border-radius: 8px;
  /* give the element a gray, 12px-wide drop shadow offset from x and y 4px, respectively */
  box-shadow: 4px 4px 12px gray;
}