链接应为 1em sans-serif 字体，填充为 5 和 10 像素，边距为 0 0 1 像素（提示：使用简写属性）；右边框应为 5 像素，颜色为 #ff1828
b. 当用户将鼠标悬停在链接上时，右边框应为双边框，其中 5 像素为白色
C。启动时，三个面食图像下面不应显示任何文本；使用标签控制鼠标悬停时弹出的显示文本；将文本块定位为绝对文本块，上边距为 220 像素，左边距为 550 像素；块的宽度至少应为 180 像素，具体取决于您在研究中发现的文本量；使用 5 像素的填充和 10 像素的边距；文本应为黑色背景上的白色。
我一直在尝试一切，这就是我到目前为止所做的，但没有任何效果。我不太确定我做错了什么？如果有人可以提供帮助，我一定会很感激。到目前为止，这是我的代码：
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Lab 7-3</title
<style type="text/css">
<!--
#links {font: 1 em sans-serif; padding: 5px 10px; margin: 0px 0px 1px, border-right: 5px color: #ff1828}
div.links:hover {border-right: double 5px; color:white}
<span>
div#sizes a:hover img.large {position: absolute; top: 220px; left: 550px;
width: 180px; border:none; padding: 5px; margin: 10px
background-color: #000000; color: #ffffff}
</span>
-->
</style>
</head>
<body>
<img src="sabatinaslogo.jpg" width="735" height="190" alt="Sabatina's logo" />
<p style="font-size: large">Hover over a photo to read about the pasta dish and its nutrition information.</p>
<div id="links" "demo">
<table style="text-align: center">
<tr>
<td>
<a><img class="picture" src="fettuccine.jpg" width="200" height="200" alt="Fettucine" title="Ingredients include:enriched durum flours, egg, water, soy lecithin. Nutritional facts: Approximately 200 calories, 3.2% total fat, 12.5% cholesterol, 16.7% protein, 1.7% calcium and 8.3% iron"/>
</td>
<td>
<a><img class="picture" src="lasagna.jpg" width="200" height="200" alt="Lasagna" title=" Ingredients include: ground beef, cheese, enriched pasta and tomato sauce. Nutritional facts: Approx. 377 calories per serving, 13% fiber, approx. 50% protein, and approx. 35% sodium" />
</td>
<td>
<a><img class="picture" src="ravioli.jpg" width="200" height="200" alt="Ravioli" title=" Ingredients include: water, durum wheat semolina, beef, wheat flour, egg, vegetable oil, salt, onion flavoring, tomatoes, sugar, cornflour, herb extracts, salt, garlic salt, spice extracts, black pepper. Nutritional facts: 2.6g of protein, 1.6g of fat, 0.8 g of fiber and 0.3g of sodium" />
</td>
</td>
</table>
</div>
</body>
</html>