body,
html {
  background-image: url("./sheep.jpg");
  background-size: 300px 300px;
  background-repeat: repeat;
  font-size: 20px;
}
div.container {
  position: relative;
  display: flex;
  min-width: 1200px;
  max-width: 1400px;
  height: 100vh;
  margin: 0 auto;
  background-color: rgba(255,255,255,0.9);
  box-shadow: 0 0 100px #000;
  justify-content: center;
  align-items: center;
}
div.container button {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 140px;
  height: 40px;
  border: 1px solid #999;
  border-radius: 8px;
  background-color: #87cefa;
  letter-spacing: 1px;
  color: #fff;
  cursor: pointer;
}
div.container div.left {
  flex: 4;
}
div.container div.left code,
div.container div.left p {
  margin-bottom: 10px;
  display: block;
  text-align: center;
}
div.container div.right {
  flex: 2;
}
div.container div.right h1 {
  text-align: center;
  font-size: 30px;
  font-weight: bold;
}
div.container div.right ul {
  text-align: left;
  list-style: none;
}
div.container div.right ul li {
  margin-top: 10px;
  list-style: none;
}