例如，下面是一個簡單的示例：

```css

width: 100px;

height: 100px;

border: 1px solid #ccc;

width: auto;

height: auto;

border: 0;

```css

width: auto;

height: auto;

border: 0;

```html

3. 應(yīng)用重置樣式

```css

width: 100px;

height: 100px;

border: 1px solid #ccc;

width: 100px;

height: 100px;