body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f4f4f4;
    color: #333;
}

/* Header */
header {
    background: #2d6a4f;
    color: white;
    padding: 20px;
    text-align: center;
}

/* Nav */
nav {
    background: #1b4332;
    text-align: center;
    padding: 10px;
}

nav a {
    color: white;
    margin: 10px;
    text-decoration: none;
}

/* About section */
.about {
    background: white;
    padding: 20px;
    margin: 20px;
    border: 2px solid #ccc;
}

/* Floating image */
.float-img {
    float: right;
    width: 250px;
    margin-left: 15px;
    border-radius: 10px;
    border: 3px solid #2d6a4f;
}

/* Flexbox */
.flex-box {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin: 20px;
}

.card {
    background: white;
    padding: 20px;
    border: 2px solid #ccc;
    width: 120px;
    text-align: center;
}

/* Grid */
.grid-box {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin: 20px;
}

.grid-item {
    background: white;
    padding: 20px;
    border: 2px solid #2d6a4f;
    text-align: center;
}

/* Positioning */
.position-box {
    position: relative;
    margin: 20px;
    padding: 20px;
    background: #d8f3dc;
    border: 2px solid #2d6a4f;
}

/* Footer */
footer {
    text-align: center;
    padding: 15px;
    background: #081c15;
    color: white;
}

/* Print version */
@media print {
    nav, footer {
        display: none;
    }

    body {
        background: white;
    }
}