html, body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    display: flex;
    flex-direction: column; /* Make the body a flex container */
}
header {
    /* background-color: #6a0dad; */
    background-color: white;
    color: #6a0dad;
    padding: 2rem;
}
main {
    flex: 1;
    background-color: #dedede;
    color: #000000;
    padding-bottom: 6rem; /* Add space equal to the footer height */
    box-sizing: border-box; /* Include padding in the element's total height */
}
h1 {
    margin: 0;
}
footer {
    background-color: #6a0dad;
    color: white;
    padding: 1rem;
    height: 4rem;
    position: fixed;
    bottom: 0;
    width: 100%;
    flex-shrink: 0;
}
.responsive-img {
    display: block;
    margin: 0 auto; /* Center the image horizontally */
    max-width: 90%; /* Ensure the image scales within the container width */
    max-height: 75vh; /* Limit the image height to 75% of the viewport height */
    height: auto; /* Maintain aspect ratio */
}
@media (max-width: 768px) {
    .responsive-img {
        width: 80%; /* Limit size to 80% of the viewport width */
    }
}