我遇到了包含链接的图像的问题。我有一个固定位置的 PNG 作为我网站的标题。这张图片链接回我的主页。在其下方滚动的是一系列缩略图，您可以单击以查看完整图像。当您向下滚动以使缩略图位于标题 PNG 后面时，您将无法再单击主页链接，而是单击后面缩略图的链接。
我感觉它与缩略图的翻转功能有关 - 因为它还使标题 PNG 半透明，这并不理想。这是我的编码（第一次尝试从头开始编码，非常抱歉）：
<!DOCTYPE html>
<html>
<head>
<title>Daniel Lewsley</title>
<link rel="stylesheet" type="text/css" href="css/style.css" media="screen">
</head>
<body>
<div id="header">
<a href="index.html"><img src="img/daniellewsley-header.png" alt="Daniel Lewsley"></a>
</div>
<!--
<div>
<ul class="nav">
<li class="nav"><a class="nav" href="illustration.html">Illustration</a></li>
<li class="nav"><a class="nav" href="design.html">Design</a></li>
<li class="nav"><a class="nav" href="other.html">Other</a></li>
<li class="nav"><a class="nav" href="info.html">Info</a></li>
</ul>
</div>
-->
<div id="gallerycontainer">
<div id="gallery"><a class="rollover" href="img/15.png"><img src="img/gallerythumb15.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/14.png"><img src="img/gallerythumb14.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/13.png"><img src="img/gallerythumb13.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/12.png"><img src="img/gallerythumb12.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/11.png"><img src="img/gallerythumb11.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/10.png"><img src="img/gallerythumb10.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/09.png"><img src="img/gallerythumb09.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/08.png"><img src="img/gallerythumb08.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/07.png"><img src="img/gallerythumb07.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/06.png"><img src="img/gallerythumb06.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/05.png"><img src="img/gallerythumb05.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/04.png"><img src="img/gallerythumb04.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/03.png"><img src="img/gallerythumb03.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/02.png"><img src="img/gallerythumb02.png" alt="Thumbnail"></a></div>
<div id="gallery"><a class="rollover" href="img/01.png"><img src="img/gallerythumb01.png" alt="Thumbnail"></a></div>
</div>
</body>
</html>
CSS：
body
{
background-color:white;
font-family:"Arial", arial, sans-serif;
font-size:0.875em; /*16px is 1em */
text-align:center;
margin:0 auto;
padding:0;
min-width:400px;
}
#header
{
font-size:0;
letter-spacing:0;
word-spacing:0;
background-color:white;
position:fixed;
/* margin:0 auto;
width:100%; */
}
ul.nav
{
list-style-type:none;
margin:5px;
padding:0;
overflow:hidden;
}
li.nav
{
display:inline-block;
}
a.nav
{
display:block;
width:100px;
background-color:#dddddd;
text-decoration:none
}
#gallerycontainer
{
padding:40px 0 0 0;
text-align:center;
font-size:0;
letter-spacing:0;
word-spacing:0;
}
#gallery
{
background-color:black;
width:400px;
height:300px;
display:inline-block;
}
a.rollover:hover
{
opacity:0.4;
filter:alpha(opacity=40); /* For IE8 and earlier */
}
关于我做错了什么的任何想法？