Untitled

<style>
  body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
  }

  h1 {
    color: #333;
    text-align: center;
    margin-top: 20px;
  }

  .sidebar {
    background-color: #f2f2f2;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }

  .sidebar button {
    margin-bottom: 5px;
    display: block;
    width: 100%;
    padding: 10px;
    background-color: #ccc;
    border: none;
    cursor: pointer;
    border-radius: 3px;
    transition: background-color 0.3s ease;
  }

  .sidebar button:hover {
    background-color: #bbb;
  }

  #todo-container {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
  }

  #todo-container input[type="text"] {
    padding: 10px;
    width: 200px;
    margin-right: 5px;
    border-radius: 3px;
    border: 1px solid #ccc;
  }

  #todo-container button {
    padding: 10px 15px;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 3px;
    transition: background-color 0.3s ease;
  }

  #todo-container button:hover {
    background-color: #45a049;
  }

  #search-input {
    padding: 10px;
    width: 200px;
    border-radius: 3px;
    border: 1px solid #ccc;
  }

  #todo-list {
    list-style-type: none;
    padding: 0;
  }

  #todo-list li {
    margin-bottom: 5px;
    background-color: #f9f9f9;
    padding: 10px;
    border-radius: 3px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }
</style>