用于在html中创建菜单的代码
<ul class="menu">
<li class="top"><a href="index.jsp" class="active_link"><span>Home</span></a></li>
<li class="top"><a href="#" class="top_link"><span class="down">Police Station</span></a>
<ul class="sub">
<li><a href="VPolicestation.jsp">Add New Station</a></li>
<li><a href="javascript:searchVPS()">Update Station</a></li>
</ul>
</li>
<li class="top"><a href="#" class="top_link"><span class="down">Police Officer</span></a>
<ul class="sub">
<li><a href="addOfficer.jsp">Add New Officer</a></li>
<li><a href="assignStation.jsp">Assign Station</a></li>
<li><a href="javascript:searchOfficer()">Update Officer</a></li>
</ul>
</li>
<li class="top"><a href="#" class="top_link"><span class="down">Report</span></a>
<ul class="sub">
<li><a href="#">Crime Report</a></li>
<li><a href="#">Citizen Report</a></li>
</ul>
</li>
<li class="top"><a href="logout.jsp" class="top_link"><span>Logout</span></a></li>
</ul>
menu.css
.bg {background: url(images/button4.gif);}
.menu {padding:0 0 0 32px; margin:0; list-style:none; height:40px; background:#fff url(images/button1a.gif) repeat-x; position:relative; font-family:arial, verdana, sans-serif; }
.menu li.top {display:block; float:left; position:relative;}
.menu li a.top_link {display:block; float:left; height:40px; line-height:33px; color:#bbb; text-decoration:none; font-size:11px; font-weight:bold; padding:0 0 0 12px; cursor:pointer;}
.menu li a.top_link span {float:left; font-weight:bold; display:block; padding:0 24px 0 12px; height:40px;}
.menu li a.top_link span.down {float:left; display:block; padding:0 24px 0 12px; height:40px; background:url(images/down.gif) no-repeat right top;}
.menu li a.top_link:hover {color:#000; background: url(images/button4.gif) no-repeat;}
.menu li a.top_link:hover span {background:url(images/button4.gif) no-repeat right top;}
.menu li a.top_link:hover span.down {background:url(images/button4.gif) no-repeat right top;}
.menu li:hover > a.top_link {color:#000; background: url(images/button4.gif) no-repeat;}
.menu li:hover > a.top_link span {background:url(images/button4.gif) no-repeat right top;}
.menu li:hover > a.top_link span.down {background:url(images/button4.gif) no-repeat right top;}
.menu li a.active_link {display:block; float:left; height:40px; line-height:33px; color:#bbb; text-decoration:none; font-size:11px; font-weight:bold; padding:0 0 0 12px; cursor:pointer;}
.menu li a.active_link span {float:left; font-weight:bold; display:block; padding:0 24px 0 12px; height:40px;}
.menu li a.active_link span.down {float:left; display:block; padding:0 24px 0 12px; height:40px; background:url(images/down.gif) no-repeat right top;}
.menu li > a.active_link {color:#000; background: url(images/button4.gif) no-repeat;}
.menu li > a.active_link span {background:url(images/button4.gif) no-repeat right top;}
.menu li > a.active_link span.down {background:url(images/button4.gif) no-repeat right top;}
.menu table {border-collapse:collapse; width:0; height:0; position:absolute; top:0; left:0;}
.menu a:hover {visibility:visible;}
.menu li:hover {position:relative; z-index:200;}
.menu ul,
.menu :hover ul ul,
.menu :hover ul :hover ul ul,
.menu :hover ul :hover ul :hover ul ul,
.menu :hover ul :hover ul :hover ul :hover ul ul {position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}
.menu :hover ul.sub {left:2px; top:40px; right:2px; background: #fff; padding:3px 0; border:1px solid #999999; white-space:nowrap; width:150px; height:auto;}
.menu :hover ul.sub li {display:block; height:20px; position:relative; float:left; width:150px;}
.menu :hover ul.sub li a {font-weight:normal;display:block; font-size:11px; height:20px; width:148px; line-height:20px; text-indent:5px; color:#000; text-decoration:none; border:3px solid #fff; border-width:0 0 0 3px;}
.menu :hover ul.sub li a.fly {background:#fff url(images/arrow.gif) 80px 7px no-repeat;}
.menu :hover ul.sub li a:hover {background:#999999; color:#fff;}
.menu :hover ul.sub li a.fly:hover {background:#999999 url(images/arrow_over.gif) 80px 7px no-repeat; color:#fff;}
.menu :hover ul li:hover > a.fly {background:#999999 url(images/arrow_over.gif) 80px 7px no-repeat; color:#fff;}
.menu :hover ul :hover ul,
.menu :hover ul :hover ul :hover ul,
.menu :hover ul :hover ul :hover ul :hover ul,
.menu :hover ul :hover ul :hover ul :hover ul :hover ul
{left:90px; top:-4px; background: #fff; padding:3px 0; border:1px solid 999999; white-space:nowrap; width:93px; z-index:200; height:auto;}
在此代码类中,active_link用于显示属于特定菜单选项的当前页面,而top_link类用于显示菜单的简单形式。然后,向下分类用于指示特定菜单下的子链接。现在,我要显示特定页面所属的当前活动菜单。
例如:如果我在addOfficer.jsp页面中,那么警务人员链接应显示为活动状态。
为了实现这一点,我在每个页面中粘贴了相同的代码,只是将类名top_link更改为active_link。并且,这增加了代码长度。需要帮助解决此问题。提前致谢 !!
菜单的屏幕截图。
最佳答案
无需再次粘贴所有代码。假设我们希望“警察”选项卡处于活动状态,我们可以在a
标记中添加一个“活动”类:
<li class="top"><a href="#" class="top_link active"><span class="down">Police Officer</span></a>
CSS可能是类似的东西(使悬停状态和活动状态类似):
.menu li:hover a.top_link,
.menu li a.top_link:hover,
.menu li a.top_link.active {color:#000; background: url(images/button4.gif) no-repeat;}
.menu li:hover a.top_link span,
.menu li a.top_link:hover span,
.menu li a.top_link.active span {background:url(images/button4.gif) no-repeat right top;}
.menu li:hover a.top_link span.down,
.menu li a.top_link:hover span.down,
.menu li a.top_link.active span.down {background:url(images/button4.gif) no-repeat right top;}
至于
active_link
CSS,则不再需要它。注意,我也将两个悬停状态组合在一起。认为它可以帮助您重用更多样式代码。
关于html - 重复使用代码来显示菜单的事件链接,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/9908412/