/* Author: yehszuchien */
body {
    margin: 0;
    padding: 0;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    text-align: center;
}

header {
    background-color: #fff;
    padding: 20px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

h1 {
    margin: 0;
    font-size: 1.5rem;
    color: #2c3e50;
}

.image-gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.image-gallery img {
    width: 100%;
    max-width: 800px;
    /* Optional: limit max width on very large screens if desired, or keep 100% */
    height: auto;
    display: block;
    margin-bottom: 0;
    /* Seamless vertical stack */
}

/* For a purely "one page, images stacked" look without gaps */
.image-gallery img {
    margin-bottom: -1px;
    /* Fix potential sub-pixel rendering gaps */
}

footer {
    padding: 20px;
    background-color: #333;
    color: #fff;
    margin-top: 20px;
}

@media (min-width: 768px) {
    h1 {
        font-size: 2rem;
    }
}