1. 標題樣式：

```css

font-size: 18px;

font-weight: bold;

text-decoration: none;

color: #333;

```css

a:link {

color: #007bff;

text-decoration: underline;

a:visited {

color: #333;

text-decoration: none;

a:hover {

color: #ff007b;

```css

a:link {

background-color: #007bff;

a:visited {

background-color: #333;

a:hover {

background-color: #ff007b;