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我正在使用一个菜单,它有一个 id 为“menu_unidades”的包装器。一旦 div 在鼠标悬停时展开,我希望此 div 调整其尺寸。

这是小提琴

我正在使用 superfish 修改的 css

CSS

/*** ESSENTIAL STYLES ***/
body {
font-family: Arial,Helvetica,sans-serif;
font-size: 11px;
}

#menu_unidades {
    width: auto;
    height: auto;
    position: relative;
    float: left;
padding: 10px 15px 10px 10px;
box-shadow: 0px 2px 2px rgb(102, 102, 102);
    left: 50px;
    margin-top: 10px;
    margin-bottom: 20px;
background-color: rgba(0,53,146,0.7);
}

.sf-menu, .sf-menu * {
    margin: 0;
    padding: 0;
list-style: none;
}
.sf-menu li {
position: relative;
}
  .sf-menu ul {
    position: absolute;
    display: none;
    top: 100%;
    left: 0;
z-index: 99;
}
.sf-menu > li {
float: left;
}
.sf-menu li:hover > ul,
.sf-menu li.sfHover > ul {
display: block;
}

.sf-menu a {
display: block;
position: relative;
}
.sf-menu ul ul {
top: 0;
left: 100%;
}

.sf-menu li ul {
padding: 10px 15px 10px 10px;
background-color: rgba(0,53,146,0.7);
}

.sf-menu li li {
    padding-left:10px;
    padding-right:10px;
    padding-top:1px;
padding-bottom:1px;
}

.sf-menu li ul a{
    padding:2px;
    font-size: 12px;
text-transform:none;
}

/*** DEMO SKIN ***/
.sf-menu {
    /*float: left;*/
margin-bottom: 1em;
}
.sf-menu ul {
box-shadow: 2px 2px 6px rgba(0,43,146,0.7);
min-width: 12em; /* allow long menu items to determine submenu width */
*width: 12em; /* no auto sub width for IE7, see white-space comment below */
}

.sf-menu li {
border-bottom:1px solid #fff;
white-space: nowrap; /* no need for Supersubs plugin */
*white-space: normal; /* ...unless you support IE7 (let it wrap) */
-webkit-transition: background .2s;
transition: background .2s;
}
.sf-menu ul li {
}
.sf-menu ul ul li {
}
.sf-menu li:hover,
.sf-menu li.sfHover {
background-color: rgba(0,53,146,0.7);
/* only transition out, not in */
-webkit-transition: none;
transition: none;
}

/*** arrows (for all except IE7) **/
.sf-arrows .sf-with-ul {
padding-right: 2.5em;
*padding-right: 1em; /* no CSS arrows for IE7 (lack pseudo-elements) */
}
 /* styling for both css and generated arrows */
  .sf-arrows .sf-with-ul:after {
    content: '';
    position: absolute;
    top: 50%;
    right: 1em;
    margin-top: -3px;
    height: 0;
width: 0;
/* order of following 3 rules important for fallbacks to work */
border: 5px solid transparent;
border-top-color: #dFeEFF; /* edit this to suit design (no rgba in IE8) */
border-top-color: rgba(255,255,255,.5);
 }
.sf-arrows > li > .sf-with-ul:focus:after,
.sf-arrows > li:hover > .sf-with-ul:after,
.sf-arrows > .sfHover > .sf-with-ul:after {
border-top-color: white; /* IE8 fallback colour */
}
/* styling for right-facing arrows */
.sf-arrows ul .sf-with-ul:after {
margin-top: -5px;
margin-right: -3px;
border-color: transparent;
border-left-color: #dFeEFF; /* edit this to suit design (no rgba in IE8) */
border-left-color: rgba(255,255,255,.5);
}
.sf-arrows ul li > .sf-with-ul:focus:after,
.sf-arrows ul li:hover > .sf-with-ul:after,
.sf-arrows ul .sfHover > .sf-with-ul:after {
border-left-color: white;
}

HTML

4

2 回答 2

1

你有这个css选择器,.sf-menu ul起初我的印象是它正在添加absolute到所有的uls.

然后我将其更改为,.sf-menu > ul因此它专门ul针对.sf-menu.

.sf-menu > ul {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 99;
}

在查看了所有内容后,css100%不确定为什么它完全修复了它。你的课程有一些重复,css所以我不确定。

它没有正确扩展的一个原因是由于position: absolute. 它们被带到元素之外,就好像它根本不存在一样,就像漂浮一样,但更糟。

我最有根据的猜测是,如果没有>它适用position: absolute于班级.sf-menu。这将使整个导航脱离工作流程,并且不会使父级扩展到内容。

现在绝对 div 是相对于.sf-menu'sli的,因为'sli是相对定位的,所以父级可以填充它们。

这是JSFIDDLE以查看它的运行情况。

于 2013-11-14T19:36:53.970 回答
0

If I understand correctly you want to give a custom look to your wrapper based on mouseover? If so you can add a custom class to it on mouseenter and mouseleave:

$('div#menu_unidades').hover(function() {
    $(this).toggleClass('test-class');
});

Add whatever you want to the test-class css and presto! You've got JQuery awesomeness. You can see this in action here http://jsfiddle.net/qLu62/1/

于 2013-11-14T19:19:32.947 回答