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

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

body > div {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-image: url('../images/banner.jpg');
  background-size: cover;
  background-position: center;
  height:  100%;
  max-height:  500px;
  width: 100%;
  max-width: 1656px;
  margin: 0 auto;
  padding: 20px;
  text-align: center;
  color: white;
}
header::after {
    content: "";
    display: block;
    height: 414px;
}
  header > h1 {
    text-indent: -9999px;
    white-space: nowrap;
    overflow: hidden;
  }

main {
  flex: 1;
}

h2, section {
  max-width: 1656px;
  margin: 0 auto;
  padding: 20px;
}
section > ul, section > ol {
  margin-left: 40px;
}
  section > ol > li {
    padding: 20px;
  }
    section > ol > li > ul {
      margin-left:  40px;
    }

footer {
  background: #333;
  color: #fff;
  padding: 10px 20px;
}

footer nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
}

footer nav ul li {
  margin: 0 15px;
}

footer nav ul li a {
  color: #fff;
  text-decoration: none;
}

@media (max-width: 1656px) {
  header, .content {
    width: 100%;
  }
}

@media (max-width: 375px) {
    header {
        background-image: url('../images/banner.jpg'); /* Path to your mobile background image */
        height: 104px;
    }

    header::after {
        height: 104px;
    }
}