html - 悬停并定位第一个 child 时如何定位 Accordion 李？

Question

我想在悬停时严格定位菜单。菜单会改变颜色和大小，但不会影响 li 菜单。我该怎么做？

请注意，这应该是 Accordion 菜单。将鼠标悬停在菜单上时，导航(子)会展开。我花了很多时间，但我无法在不弄乱子菜单的情况下定位菜单。

<nav id="menu_box">
  <ul class="menu">
    <li> <a href="#">Menu</a>
      <ul>
        <li><a href="#">sub</a></li>
        <li><a href="#">sub</a></li>
        <li><a href="#">sub</a></li>
      </ul>
    </li>
    <li> <a href="#">Menu</a>
      <ul>
        <li><a href="#">sub</a></li>
        <li><a href="#">sub</a></li>
        <li><a href="#">sub</a></li>
      </ul>
    </li>
    <li> <a href="#">Menu</a>
      <ul>
        <li><a href="#">sub</a></li>
        <li><a href="#">sub</a></li>
     </ul>
    </li>

  </ul>
</nav>

这是CSS:

https://jsfiddle.net/kgrxqL0k/1/

Answer 1

也许是这样的:

.menu > li li a:hover {
    color: pink;
}

---

#cssmenu,
#cssmenu ul,
#cssmenu ul li,
#cssmenu ul li a {
  margin: 0;
  padding: 0;
  border: 0;
  list-style: none;
  line-height: 1;
  display: block;
  position: relative;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}
#cssmenu {
  width: 220px;
  font-family: Raleway, sans-serif;
  color: #ffffff;
}
#cssmenu ul ul {
  display: none;
}
#cssmenu > ul > li.active > ul {
  display: block;
}
.align-right {
  float: right;
}
#cssmenu > ul > li > a {
  padding: 16px 22px;
  cursor: pointer;
  z-index: 2;
  font-size: 16px;
  text-decoration: none;
  color: #ffffff;
  -webkit-transition: color .2s ease;
  -o-transition: color .2s ease;
  transition: color .2s ease;
}
#cssmenu > ul > li > a:hover {
  color: #d8f3f0;
}
#cssmenu ul > li.has-sub > a:after {
  position: absolute;
  right: 26px;
  top: 19px;
  z-index: 5;
  display: block;
  height: 10px;
  width: 2px;
  content: "";
  -webkit-transition: all 0.1s ease-out;
  -moz-transition: all 0.1s ease-out;
  -ms-transition: all 0.1s ease-out;
  -o-transition: all 0.1s ease-out;
  transition: all 0.1s ease-out;
}
#cssmenu ul > li.has-sub > a:before {
  position: absolute;
  right: 22px;
  top: 23px;
  display: block;
  width: 10px;
  height: 2px;
  content: "";
  -webkit-transition: all 0.1s ease-out;
  -moz-transition: all 0.1s ease-out;
  -ms-transition: all 0.1s ease-out;
  -o-transition: all 0.1s ease-out;
  transition: all 0.1s ease-out;
}
#cssmenu ul > li.has-sub.open > a:after,
#cssmenu ul > li.has-sub.open > a:before {
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
}
#cssmenu ul ul li a {
  padding: 14px 22px;
  cursor: pointer;
  z-index: 2;
  font-size: 14px;
  text-decoration: none;
  color: #dddddd;
  -webkit-transition: color .2s ease;
  -o-transition: color .2s ease;
  transition: color .2s ease;
}
#menu ul li:hover a {
  color: pink;
}
#cssmenu ul ul ul li a {
  padding-left: 32px;
}
#cssmenu ul ul li a:hover {
  color: #ffffff;
}
#cssmenu ul ul > li.has-sub > a:after {
  top: 16px;
  right: 26px;
}
#cssmenu ul ul > li.has-sub > a:before {
  top: 20px;
}
.menu {
  margin: 0 auto;
  padding: 0;
  width: 350px;
}
.menu li {
  list-style: none;
}
.menu li a {
  display: table;
  margin-top: 1px;
  padding: 14px 10px;
  width: 100%;
  text-decoration: none;
  text-align: left;
  vertical-align: middle;
  color: #ccc;
  font-weight: 600;
  font-size: 18px;
  overflow: hidden;
  -webkit-transition-property: background;
  -webkit-transition-duration: 0.4s;
  -webkit-transition-timing-function: ease-out;
  transition-property: background;
  transition-duration: 0.4s;
  transition-timing-function: ease-out;
}
.menu > li:first-child a {
  margin-top: 0;
}
.menu >li a:hover a:first-child {
  font-size: 25px;
  color: #547b16;
}
.menu li a:hover {
  ] -webkit-transition-property: background;
  -webkit-transition-duration: 0.2s;
  -webkit-transition-timing-function: ease-out;
  transition-property: background;
  transition-duration: 0.2s;
  transition-timing-function: ease-out;
}
.menu li ul {
  margin: 0;
  padding: 0;
}
.menu li li a {
  display: block;
  margin-top: 0;
  padding: 0 10px;
  height: 0;
  color: #1F3D39;
  -webkit-transition-property: all;
  -webkit-transition-duration: 0.5s;
  -webkit-transition-timing-function: ease-out;
  transition-property: all;
  transition-duration: 0.5s;
  transition-timing-function: ease-out;
}
.menu > li:hover li a {
  display: table;
  margin-top: 1px;
  padding: 10px;
  width: 100%;
  height: 1em;
  -webkit-transition-property: all;
  -webkit-transition-duration: 0.3s;
  -webkit-transition-timing-function: ease-out;
  transition-property: all;
  transition-duration: 0.3s;
  transition-timing-function: ease-out;
}
.menu > li:hover li a:hover {
  -webkit-transition-property: background;
  -webkit-transition-duration: 0.2s;
  -webkit-transition-timing-function: ease-out;
  transition-property: background;
  transition-duration: 0.2s;
  transition-timing-function: ease-out;
}
.menu > li li a:hover {
  color: pink;
}

<nav id="menu_box">
  <ul class="menu">
    <li> <a href="#">Menu</a>
      <ul>
        <li><a href="#">sub</a>
        </li>
        <li><a href="#">sub</a>
        </li>
        <li><a href="#">sub</a>
        </li>
      </ul>
    </li>
    <li> <a href="#">Menu</a>
      <ul>
        <li><a href="#">sub</a>
        </li>
        <li><a href="#">sub</a>
        </li>
        <li><a href="#">sub</a>
        </li>
      </ul>
    </li>
    <li> <a href="#">Menu</a>
      <ul>
        <li><a href="#">sub</a>
        </li>
        <li><a href="#">sub</a>
        </li>
      </ul>
    </li>

  </ul>
</nav>