style.css

body {background-color: black;}

input[type=text], select {
    font-size: 20px;
    font-family: "Berlin Sans FB";
    width: 80%;
    height: 50px ;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
  }
  
  input[type=email], select {
    font-size: 20px;
    width: 80%; 
    font-family: "Berlin Sans FB";
    height: 50px;
  }

  input[type=tel], select {
    font-size: 20px;
    width: 80%;
    font-family: "Berlin Sans FB";
    height: 50px;
  }
  
  button {
    font-size: 20px;
    width: 80%;
    background-color: #010112;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #282928;
  }
  
  div {
    font-size: 30px;
    width: 100%;
    height: auto;
    text-align: center;
    border-radius:100px;
    background-color: #ec8646;
    padding: 10px;
  }

  * {
    box-sizing: border-box;
  }
  
  header {
    font-family: Agency FB;
    text-align: center;
    font-size: 30px;
    color: rgb(255, 252, 245);
  }
  
  nav {
    float: left;
    width: 50%;
    padding: 20px;
  }
  
  nav ul {
    list-style-type: none;
    padding: 0;
  }
  
  article {
    align-items: center ;
    float: left;
    padding: 20px;
    width: 50%;
  }
  
  section::after {
    content: "";
    display: table;
    clear: both;
  }
  
  footer {
    padding: 10px;
    text-align: center;
    color: white;
  }
  
  @media (max-width: 600px) {
    nav, article {
      width: 100%;
      height: auto;
    }
  }