/* --- RESET --- */
* {
  color: inherit;
  font-size: inherit;
  margin: 0;
  padding: 0;
}
html {
  background-color: #fff;
  color: #000;
  font-family: sans-serif;
  font-size: 20px;
}
body {
  height: 100%;
}
#wrapper {
  margin: auto;
  max-width: 960px;
  position: relative;
}
main {
  display: block;
}
ul, ol, li {
  list-style: none;
}
img {
  border: none;
}

/* --- END OF RESET --- */

body {
  background-image: url("canvas.png");
}

button {
  font-size: 2em;
  padding: .2em .5em;
  
  position: fixed;
  bottom: 0;
  right: 0;
}

canvas {
  cursor: crosshair;
  display: block;
  opacity: .5;
}