Vue Js todo list App

<!DOCTYPE html>
<html>
  <head>
    <script src="https://unpkg.com/vue@3.2.12/dist/vue.global.js"></script>
  </head>

<body>
    <div id="app">
      <div class="todo-container">
        <h3>Vuejs Todo List Example</h3>
        <input type="text" v-model="newTodo" class="todo-input" />
        <button @click="addTodo" class="todo-button">
          {{ editIndex !== -1 ? 'Edit Todo' : 'Add Todo' }}
        </button>
        <ul class="todo-list">
          <li v-for="(todo, index) in todos" :key="index" class="todo-item">
            <input
              type="checkbox"
              @change="toggleComplete(index)"
              class="todo-checkbox"
            />
            <span
              :style="{ textDecoration: todo.completed ? 'line-through' : 'none', color: todo.completed ? 'red' : 'black' }"
              class="todo-text"
            >
              {{ todo.text }}
            </span>
            <button @click="removeTodo(index)" class="todo-remove-button">
              Remove
            </button>
            <button @click="editTodo(index)" class="todo-edit-button">
              Edit
            </button>
          </li>
        </ul>
      </div>
    </div>

editTodo(index) {
            this.newTodo = this.todos[index].text;
            this.editIndex = index;
          },
        },
      });

app.mount("#app");
    </script>

.todo-container {
        text-align: center;
      }

h3 {
        font-size: 24px;
        margin-bottom: 20px;
      }

.todo-input {
        width: 100%;
        padding: 10px;
        font-size: 16px;
        border: 1px solid #ccc;
        border-radius: 4px;
        margin-bottom: 10px;
        box-sizing: border-box;
      }

.todo-button {
        background-color: #007bff;
        color: #ffffff;
        padding: 10px 20px;
        font-size: 16px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
      }

.todo-button:hover {
        background-color: #0056b3;
      }

.todo-list {
        list-style: none;
        padding: 0;
      }

.todo-item {
        display: flex;
        align-items: center;
        padding: 10px;
        border-bottom: 1px solid #ccc;
      }

.todo-text {
        flex: 1;
        font-size: 16px;
      }

.todo-remove-button,
      .todo-edit-button {
        background-color: #f44336;
        color: #ffffff;
        padding: 5px 10px;
        font-size: 14px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        margin-left: 10px;
      }

.todo-remove-button:hover,
      .todo-edit-button:hover {
        background-color: #d32f2f;
      }

.todo-remove-button {
        margin-right: 5px;
      }
    </style>
  </body>
</html>