body {
    background-image: url('../images/math-background.jpg'); /* each subject has their own */
}

h1, h2 {
    color: #d32f2f; /* Red color */
}

a {
    background-color: #d32f2f; /* Red color */
}

a:hover {
    background-color: #b71c1c; /* Darker red color on hover */
}

/* Style for form buttons */
input[type="submit"], button {
    background-color: #d32f2f; /* Red color */
}

input[type="submit"]:hover, button:hover {
    background-color: #b71c1c; /* Darker red color on hover */
}