* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  background-color: rgb(0 0 0);
}

canvas {
  background-color: rgb(0 0 0);
  margin: 0;
  padding: 0;
  display: block;
}

.head {
  width: 100%;
  top: 0;
  left: 0;
  position: absolute;
  display: flex;
  justify-content: space-between;
  color: rgb(173, 163, 163);
  padding: 3px 10px;
}

.option {
  font-size: 1rem;
  display: flex;
  align-items: center;
}

input {
  width: 10px;
  height: 10px;
}

.head a {
  color: rgb(189, 181, 181);
  background-color: transparent;
  padding: 0px 5px;
  display: flex;
  align-items: center;
  gap: 5px;
  border: 1px solid rgb(81, 80, 80);
  border-radius: 5px;
  text-decoration: none;
}

.head a:hover {
  text-decoration: underline;
  border-color: rgb(0, 81, 255);
  color: white;
}

footer {
  position: absolute;
  font-size: 0.9rem;
  bottom: 5px;
  color: gray;
  text-align: center;
  width: 100%;
  font-family: cursive;
}

footer a {
  color: rgb(80, 80, 80);
}