下拉菜单第二个链接在悬停时消失

Question

我是CSS的新手，但似乎无法在我发现的任何主题中找到解决我的问题的方法，尽管这似乎是一个常见的问题。

基本上我有一个下拉菜单，当我将鼠标悬停在它上面时，下拉显示正常，但是当我将鼠标移过第一个下拉链接时，它会消失。所以我假设我的第二个下拉链接有问题，但不知道如何修复它。

以下是正在发生的事情的截屏视频： Drop Down Broken Link

<form>
<input type="button" onclick="getRandomInt()" value="Click Here">
<br>
</form>
<script type="text/javascript">

function getRandomInt(min, max) {
return Math.floor(Math.random() * (max - min)) + min;
};
document.write(getRandomInt(1, 12));

</script>

@import url(https://fonts.googleapis.com/css?family=Montserrat:400,700);
#cssmenu,
#cssmenu ul,
#cssmenu ul li,
#cssmenu ul li a,
#cssmenu #menu-button {
  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:after,
#cssmenu > ul:after {
  content: ".";
  display: block;
  clear: both;
  visibility: hidden;
  line-height: 0;
  height: 0;
}
#cssmenu #menu-button {
  display: none;
}
#cssmenu {
  font-family: Montserrat, sans-serif;
  background: #fcc800;
}
#cssmenu > ul > li {
  float: left;
}
#cssmenu.align-center > ul {
  font-size: 0;
  text-align: center;
}
#cssmenu.align-center > ul > li {
  display: inline-block;
  float: none;
}
#cssmenu.align-center ul ul {
  text-align: left;
}
#cssmenu.align-right > ul > li {
  float: right;
}
#cssmenu > ul > li > a {
  padding: 17px;
  font-size: 10px;
  letter-spacing: 0.5px;
  text-decoration: none;
  color: #000000;
  font-weight: 900;
  text-transform: uppercase;
}
#cssmenu > ul > li:hover > a {
  color: #ffffff;
}
#cssmenu > ul > li.has-sub > a {
  padding-right: 30px;
}
#cssmenu > ul > li.has-sub > a:after {
  position: absolute;
  top: 21.5px;
  right: 11px;
  width: 8px;
  height: 2px;
  display: block;
  background: #000000;
  content: '';
}
#cssmenu > ul > li.has-sub > a:before {
  position: absolute;
  top: 18.5px;
  right: 14px;
  display: block;
  width: 2px;
  height: 8px;
  background: #000000;
  content: '';
  -webkit-transition: all .25s ease;
  -moz-transition: all .25s ease;
  -ms-transition: all .25s ease;
  -o-transition: all .25s ease;
  transition: all .25s ease;
}
#cssmenu > ul > li.has-sub:hover > a:before {
  top: 22.5px;
  height: 0;
}
#cssmenu ul ul {
  position: absolute;
  left: -9999px;
}
#cssmenu.align-right ul ul {
  text-align: right;
}
#cssmenu ul ul li {
  height: 0;
  -webkit-transition: all .25s ease;
  -moz-transition: all .25s ease;
  -ms-transition: all .25s ease;
  -o-transition: all .25s ease;
  transition: all .25s ease;
}
#cssmenu li:hover > ul {
  left: auto;
}
#cssmenu.align-right li:hover > ul {
  left: auto;
  right: 0;
}
#cssmenu li:hover > ul > li {
  height: 33px;
}
#cssmenu ul ul ul {
  margin-left: 100%;
  top: 0;
}
#cssmenu.align-right ul ul ul {
  margin-left: 0;
  margin-right: 100%;
}
#cssmenu ul ul li a {
  border-bottom: 1px solid rgba(150, 150, 150, 0.15);
  padding: 11px 15px;
  width: 170px;
  font-size: 10px;
  text-decoration: none;
  color: #dddddd;
  font-weight: 400;
  background: #000000;
}
#cssmenu ul ul li:last-child > a,
#cssmenu ul ul li.last-item > a {
  border-bottom: 0;
}
#cssmenu ul ul li:hover > a,
#cssmenu ul ul li a:hover {
  color: #ffffff;
}
#cssmenu ul ul li.has-sub > a:after {
  position: absolute;
  top: 15px;
  right: 11px;
  width: 8px;
  height: 2px;
  display: block;
  background: #dddddd;
  content: '';
}
#cssmenu.align-right ul ul li.has-sub > a:after {
  right: auto;
  left: 11px;
}
#cssmenu ul ul li.has-sub > a:before {
  position: absolute;
  top: 12px;
  right: 14px;
  display: block;
  width: 2px;
  height: 8px;
  background: #dddddd;
  content: '';
  -webkit-transition: all .25s ease;
  -moz-transition: all .25s ease;
  -ms-transition: all .25s ease;
  -o-transition: all .25s ease;
  transition: all .25s ease;
}
#cssmenu.align-right ul ul li.has-sub > a:before {
  right: auto;
  left: 14px;
}
#cssmenu ul ul > li.has-sub:hover > a:before {
  top: 16.5px;
  height: 0;
}
#cssmenu.small-screen {
  width: 100%;
}
#cssmenu.small-screen ul {
  width: 100%;
  display: none;
}
#cssmenu.small-screen.align-center > ul {
  text-align: left;
}
#cssmenu.small-screen ul li {
  width: 100%;
  border-top: 1px solid rgba(120, 120, 120, 0.2);
}
#cssmenu.small-screen ul ul li,
#cssmenu.small-screen li:hover > ul > li {
  height: auto;
}
#cssmenu.small-screen ul li a,
#cssmenu.small-screen ul ul li a {
  width: 100%;
  border-bottom: 0;
}
#cssmenu.small-screen > ul > li {
  float: none;
}
#cssmenu.small-screen ul ul li a {
  padding-left: 25px;
}
#cssmenu.small-screen ul ul ul li a {
  padding-left: 35px;
}
#cssmenu.small-screen ul ul li a {
  color: #000000;
  background: none;
}
#cssmenu.small-screen ul ul li:hover > a,
#cssmenu.small-screen ul ul li.active > a {
  color: #ffffff;
}
#cssmenu.small-screen ul ul,
#cssmenu.small-screen ul ul ul,
#cssmenu.small-screen.align-right ul ul {
  position: relative;
  left: 0;
  width: 100%;
  margin: 0;
  text-align: left;
}
#cssmenu.small-screen > ul > li.has-sub > a:after,
#cssmenu.small-screen > ul > li.has-sub > a:before,
#cssmenu.small-screen ul ul > li.has-sub > a:after,
#cssmenu.small-screen ul ul > li.has-sub > a:before {
  display: none;
}
#cssmenu.small-screen #menu-button {
  display: block;
  padding: 17px;
  color: #000000;
  cursor: pointer;
  font-size: 11px;
  text-transform: uppercase;
  font-weight: 700;
}
#cssmenu.small-screen #menu-button:after {
  position: absolute;
  top: 21.5px;
  right: 17px;
  display: block;
  height: 4px;
  width: 20px;
  border-top: 2px solid #000000;
  border-bottom: 2px solid #000000;
  content: '';
  box-sizing: content-box;
}
#cssmenu.small-screen #menu-button:before {
  position: absolute;
  top: 15.5px;
  right: 17px;
  display: block;
  height: 2px;
  width: 20px;
  background: #000000;
  content: '';
  box-sizing: content-box;
}
#cssmenu.small-screen #menu-button.menu-opened:after {
  top: 22.5px;
  border: 0;
  height: 2px;
  width: 15px;
  background: #ffffff;
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
}
#cssmenu.small-screen #menu-button.menu-opened:before {
  top: 22.5px;
  background: #ffffff;
  width: 15px;
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
}
#cssmenu.small-screen .submenu-button {
  position: absolute;
  z-index: 99;
  right: 0;
  top: 0;
  display: block;
  border-left: 1px solid rgba(120, 120, 120, 0.2);
  height: 45px;
  width: 45px;
  cursor: pointer;
}
#cssmenu.small-screen .submenu-button.submenu-opened {
  background: #e3b400;
}
#cssmenu.small-screen ul ul .submenu-button {
  height: 32px;
  width: 32px;
}
#cssmenu.small-screen .submenu-button:after {
  position: absolute;
  top: 21.5px;
  right: 18.5px;
  width: 8px;
  height: 2px;
  display: block;
  background: #000000;
  content: '';
}
#cssmenu.small-screen ul ul .submenu-button:after {
  top: 14px;
  right: 12px;
}
#cssmenu.small-screen .submenu-button.submenu-opened:after {
  background: #ffffff;
}
#cssmenu.small-screen .submenu-button:before {
  position: absolute;
  top: 18.5px;
  right: 21.5px;
  display: block;
  width: 2px;
  height: 8px;
  background: #000000;
  content: '';
}
#cssmenu.small-screen ul ul .submenu-button:before {
  top: 11px;
  right: 15px;
}
#cssmenu.small-screen .submenu-button.submenu-opened:before {
  display: none;
}
#cssmenu.small-screen.select-list {
  padding: 5px;
}

.header-top{
  height: 72px;
  position: relative;
  z-index: 90;
}

  .sub-menu {
z-index: 9999 !important;
}

任何帮助都会很棒，一直试图解决它一段时间没有运气！

Answer 1

我创建了codepen网址 - http://codepen.io/nagasai/pen/KMpLqz，看起来不错

尝试增加css转换时间

      -webkit-transition: all .25s ease;
      -moz-transition: all .25s ease;
      -ms-transition: all .25s ease;
      -o-transition: all .25s ease;
      transition: all .25s ease;