* {
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
  }
  
  header {
    background-color: #333;
    color: #fff;
    padding: 20px;
    text-align: center;
  }
  
  nav {
    background-color: #666;
    text-align: center;
    padding: 10px;
  }
  
  nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
  }
  
  nav ul li {
    display: inline-block;
    margin-right: 10px;
  }
  
  nav ul li a {
    color: #fff;
    text-decoration: none;
    padding: 5px 10px;
  }
  
  main {
    padding: 20px;
    margin: 20px;
    background-color: #fff;
  }
  
  section {
    margin-bottom: 20px;
  }
  
  h2 {
    color: #333;
  }
  
  .phone, .part {
    border: 1px solid #ccc;
    padding: 10px;
    margin-bottom: 10px;
  }
  
  .phone img, .part img {
    width: 100%;
    max-width: 200px;
    height: auto;
    margin-bottom: 10px;
  }
  
  .phone h3, .part h3 {
    color: #333;
    margin: 0;
  }
  
  .phone p, .part p {
    color: #666;
  }
  
  .phone a, .part a {
    display: inlineblock;
    background-color: #333;
    color: #fff;
    text-decoration: none;
    padding: 5px 10px;
    margin-top: 10px;
  }
  
  footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px;
  }