* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #0b3d2e;
    font-family: Arial, sans-serif;
    color: #fff;
}

.container {
    max-width: 420px;
    margin: auto;
    text-align: center;
}

.image-box {
    position: relative;
}

.main-img {
    width: 100%;
    display: block;
}

.seo-content {
    padding: 20px;
    font-size: 14px;
    line-height: 1.7;
}

h1 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #00ff99;
}

.footer {
    margin: 25px 0;
    font-size: 12px;
}

.footer a {
    color: #fff;
    text-decoration: none;
    margin: 0 5px;
}