body {
font-family: Arial, sans-serif;
text-align: center;
}
canvas {
border: 2px solid #333;
margin-top: 20px;
cursor: crosshair;
}
#controls {
margin-top: 20px;
}
button {
padding: 10px 20px;
background-color: #007bff;
color: white;
border: none;
cursor: pointer;
margin: 0 5px;
}
button:hover {
background-color: #0056b3;
}
.red {
background-color: red;
}
.blue {
...
