html {
  height: 100%;
  width: 100%;
}

#button1 {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin-left: 300px;
}

body {
  background-image: url("https://i.pinimg.com/originals/ec/5d/01/ec5d01013ac50bd433c854e4851ec3f2.png");
  background-repeat: no-repeat;
  background-color: #cccccc;
}