style.css

body {
  font-family: Tahoma, Geneva, Verdana, sans-serif;
  background-color: #84fab0;
  background-image: linear-gradient(to top, #9890e3 0%, #b1f4cf 100%);
  height: 100vh;
  font-size: 18px;
  margin: 0;
  padding: 0;
}
canvas {
  border: solid 5px;
  border-color: goldenrod;
  border-radius: 10px;
  box-shadow: 14.8px 14.7px 14.4px rgba(0, 0, 0, 0.07),
    118px 117px 115px rgba(0, 0, 0, 0.14);
}
header {
  display: flex;
  justify-content: space-around;
  align-items: center;
  width: 100%;
}
main {
  width: fit-content;
  margin: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

select {
  font-family: Arial, sans-serif;
  font-size: 14px;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  outline: none;
  background-color: #fff;
  color: #333;
  cursor: pointer;
  transition: border-color 0.3s ease;
}

select:hover,
select:focus {
  border-color: #9890e3;
}

button {
  font-family: Arial, sans-serif;
  font-size: 18px;
  padding: 10px 15px;
  background-color: #007bff;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #0056b3;
}

#canvas-container {
  margin: 1rem 2rem;
}