我通过CSS创建了一个下拉菜单,但奇怪的是所有下拉菜单都是左对齐的。我希望所有的下拉列表都会出现在父菜单下面。
HTML如下: -
<div id="menu">
<ul>
<li ng-class="{selected: $index==currPage}" ng-repeat="page in data.pages" class="ng-scope selected">
<a href="" ng-click="goToPage($index)" class="ng-binding">Introduction</a>
<ul>
<!-- ngRepeat: smenu in data.subMenu[$index].list --><li ng-class="{$index==currMenu}" ng-repeat="smenu in data.subMenu[$index].list" class="ng-scope">
<a href="" ng-click="goToPage($index)" class="ng-binding">Profile</a>
</li><li ng-class="{$index==currMenu}" ng-repeat="smenu in data.subMenu[$index].list" class="ng-scope">
<a href="" ng-click="goToPage($index)" class="ng-binding">Background</a>
</li><li ng-class="{$index==currMenu}" ng-repeat="smenu in data.subMenu[$index].list" class="ng-scope">
<a href="" ng-click="goToPage($index)" class="ng-binding">What is KAM</a>
</li>
</ul>
</li>
...
</div>
以下是CSS: -
#menu {
/*border-bottom:4px seagreen solid;*/
background-color: #2d394d;
list-style:none;
}
#menu ul {
list-style: none;
}
#menu ul li {
display: inline-block;
float: none;
/*width: 20%;*/
}
#menu ul li a{
font-size: 10pt;
padding:12px 24px 12px 24px;
/*border-right:1px white solid;*/
display:block;
text-decoration: none;
text-align: center;
color:#fff;
text-transform: uppercase;
}
#menu ul li a:hover{
}
#menu ul li.selected a {
background-color: #1b86c2;
color:#fff;
}
/* DropDown Menus */
#menu ul ul{
background:#fff; /* Adding a background makes the dropdown work properly in IE7+. Make this as close to your page's background as possible (i.e. white page == white background). */
background:rgba(255,255,255,0); /* But! Let's make the background fully transparent where we can, we don't actually want to see it if we can help it... */
list-style:none;
position:absolute;
left:-9999px; /* Hide off-screen when not needed (this is more accessible than display:none;) */
}
#menu ul li ul li{
padding-top:1px; /* Introducing a padding between the li and the a give the illusion spaced items */
float:none;
display: block;
}
#nav ul ul a{
white-space:nowrap; /* Stop text wrapping and creating multi-line dropdown items */
}
#menu li:hover ul{ /* Display the dropdown on hover */
left:0; /* Bring back on-screen when needed */
}
#menu li:hover a{ /* These create persistent hover states, meaning the top-most link stays 'hovered' even when your cursor has moved down the list. */
background:#1b86c2;
text-decoration:underline;
}
#menu li:hover ul a{ /* The persistent hover state does however create a global style for links even before they're hovered. Here we undo these effects. */
text-decoration:none;
}
#menu li:hover ul li a:hover{ /* Here we define the most explicit hover states--what happens when you hover each individual link. */
background:#333;
}
你可以看到图像显示在这里(图片显示“案例”的下拉列表,它应该在案例下,但它会向左移动。“简介”子菜单也显示在同一个地方): -
答案 0 :(得分:1)
尝试添加#menu ul li {position: relative;}
答案 1 :(得分:1)
<强>校正:强>
仔细观察后,我的最后答案不太对劲。这可能不是修复它的最佳方法。但它是一种方式(或者无论如何在球场中获取)。
在CSS中执行以下操作:
#menu {
/*border-bottom:4px seagreen solid;*/
background-color: #2d394d;
height:40px;
list-style:none;
}
#menu ul li ul{
position:relative;
}
以下是演示:
答案 2 :(得分:1)
这是因为left:0
定位和父li的位置默认为static
。哟可以通过标记它相对来修复它,这样孩子的ul left:0
将相对于父li。
#menu ul li {
display: inline-block;
float: none;
/*width: 20%;*/
position:relative; /*Add this*/
}
#menu li:hover ul{ /* Display the dropdown on hover */
/* Bring back on-screen when needed */
left:0;
padding:0; /*Add this if you are not using any reset*/
}
答案 3 :(得分:0)
看起来每个下拉列表的位置绝对是0px:
left:0; /* Bring back on-screen when needed */
我建议将每个人相对于其父母定位。
您可以考虑使用display:none
来隐藏下拉菜单,而不是将它们放在屏幕外。