Код IT Загрузка примера кода…

HTML main.html 
<!DOCTYPE html>
<html lang="ru">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Дашборд</title>
  <style>
    *, *::before, *::after { box-sizing: border-box; }
    body {
      margin: 0;
      min-height: 100dvh;
      display: grid;
      grid-template-columns: 14rem 1fr;
      font-family: system-ui, sans-serif;
    }
    aside {
      padding: 1rem;
      background: #1e293b;
      color: #e2e8f0;
    }
    aside a { display: block; color: #94a3b8; text-decoration: none; padding: 0.4rem 0; }
    aside a:hover { color: #fff; }
    .workspace { display: flex; flex-direction: column; min-width: 0; }
    .bar {
      padding: 0.75rem 1rem;
      border-bottom: 1px solid #e2e8f0;
      font-weight: 600;
    }
    .tiles {
      flex: 1;
      padding: 1rem;
      display: grid;
      gap: 1rem;
      grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
      align-content: start;
    }
    .tile {
      padding: 1rem;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
    }
    @media (max-width: 40rem) {
      body { grid-template-columns: 1fr; }
      aside { display: flex; gap: 1rem; flex-wrap: wrap; }
    }
  </style>
</head>
<body>
  <aside>
    <strong style="display:block;margin-bottom:0.75rem">Admin</strong>
    <a href="#">Обзор</a>
    <a href="#">Пользователи</a>
    <a href="#">Отчёты</a>
  </aside>
  <div class="workspace">
    <div class="bar">Главная</div>
    <div class="tiles">
      <div class="tile">Посетители<br /><strong>1 240</strong></div>
      <div class="tile">Заказы<br /><strong>86</strong></div>
      <div class="tile">Выручка<br /><strong>₽ 42k</strong></div>
    </div>
  </div>
</body>
</html>
<!DOCTYPE html>
<html lang="ru">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Дашборд</title>
  <style>
    *, *::before, *::after { box-sizing: border-box; }
    body {
      margin: 0;
      min-height: 100dvh;
      display: grid;
      grid-template-columns: 14rem 1fr;
      font-family: system-ui, sans-serif;
    }
    aside {
      padding: 1rem;
      background: #1e293b;
      color: #e2e8f0;
    }
    aside a { display: block; color: #94a3b8; text-decoration: none; padding: 0.4rem 0; }
    aside a:hover { color: #fff; }
    .workspace { display: flex; flex-direction: column; min-width: 0; }
    .bar {
      padding: 0.75rem 1rem;
      border-bottom: 1px solid #e2e8f0;
      font-weight: 600;
    }
    .tiles {
      flex: 1;
      padding: 1rem;
      display: grid;
      gap: 1rem;
      grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
      align-content: start;
    }
    .tile {
      padding: 1rem;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
    }
    @media (max-width: 40rem) {
      body { grid-template-columns: 1fr; }
      aside { display: flex; gap: 1rem; flex-wrap: wrap; }
    }
  </style>
</head>
<body>
  <aside>
    <strong style="display:block;margin-bottom:0.75rem">Admin</strong>
    <a href="#">Обзор</a>
    <a href="#">Пользователи</a>
    <a href="#">Отчёты</a>
  </aside>
  <div class="workspace">
    <div class="bar">Главная</div>
    <div class="tiles">
      <div class="tile">Посетители<br /><strong>1 240</strong></div>
      <div class="tile">Заказы<br /><strong>86</strong></div>
      <div class="tile">Выручка<br /><strong>₽ 42k</strong></div>
    </div>
  </div>
</body>
</html>