/**
 * Fix user-agent
 */

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

/**
 * Canvas
 */

.whiteboard {
  height: 100%;
  width: 100%;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
}

.colors {
  padding: 0.2em 0.5em;
  position: fixed;
}

.color {
  display: inline-block;
  height: 32px;
  width: 32px;
}

.wiggle {
  animation: shake 0.5s;
  animation-iteration-count: infinite;
}

/* from https://www.w3schools.com/howto/howto_css_shake_image.asp */
@keyframes shake {
  0% { transform: translate(1px, 1px) rotate(0deg); }
  10% { transform: translate(-1px, -2px) rotate(-1deg); }
  20% { transform: translate(-3px, 0px) rotate(1deg); }
  30% { transform: translate(3px, 2px) rotate(0deg); }
  40% { transform: translate(1px, -1px) rotate(1deg); }
  50% { transform: translate(-1px, 2px) rotate(-1deg); }
  60% { transform: translate(-3px, 1px) rotate(0deg); }
  70% { transform: translate(3px, 1px) rotate(-1deg); }
  80% { transform: translate(-1px, -1px) rotate(1deg); }
  90% { transform: translate(1px, 2px) rotate(0deg); }
  100% { transform: translate(1px, -2px) rotate(-1deg); }
}

.color.black { background-color: black; }
.color.red { background-color: red; }
.color.green { background-color: green; }
.color.blue { background-color: blue; }
.color.yellow { background-color: yellow; }