* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Franklin Gothic Medium", "Arial Narrow", Arial, sans-serif;
  }
  
  .header {
    width: 100%;
    height: 100vh;
    padding: 0 10%;
    background: darkgray;
    background-image: url(img/mfw.jpg);
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    color: #fff;
  }
  
  nav {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
  }
  
  nav ul li {
    display: inline-block;
    list-style: none;
    margin: 10px 30px;
  }
  
  nav ul li {
    text-decoration: none;
    color: rgb(0, 45, 39);
  }
  
  .text-box {
    margin-top: 130px;
    max-width: 600px;
  }
  
  .text-box h1 {
    font-size: 45px;
    margin-bottom: 20px;
    color: white;
  }
  
  .user-box {
    display: flex;
    justify-content: flex-end;
    width: 100%;
  }
  
  a {
    text-decoration: none;
    color: rgb(0, 45, 39);
  }
  
  a:hover {
    color: rgb(0, 0, 0);
    transition: 0.5s;
  }
  
  .background-image {
    background-size: contain;
  }