index.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Home - Blow Holds</title>
  <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap" rel="stylesheet">
  <link rel="stylesheet" href="styles.css"> <!-- Link to your external CSS file -->
</head>
<body>

  <header>
    <b href="index.html">HOME</b> <!-- <b> tags don't have href attribute. It should be <a> if it's a link -->
    <a href="mission.html">MISSION</a>
    <a href="innovations.html">INNOVATIONS</a>
    <a href="shop.html">SHOP</a>
  </header>

  <div class="main-content">
    <div class="content">
      <img src="logo.svg" alt="Blow Holds Logo" class="center">
      <div class="title">
        WE BLOW HOLDS
      </div>
    </div>
  </div>

</body>
</html>