隐藏在幻灯片容器后面的下拉菜单？

时间：2017-11-16 18:43:19

标签： drop-down-menu z-index slideshow

我们有一个带有下拉菜单和幻灯片放映的主索引页面，z-index工作正常，但在我们的其他页面中，我们删除了幻灯片并离开了下拉菜单。但由于某些原因，在没有幻灯片放映的页面中，下拉菜单隐藏在幻灯片放映的容器后面，尽管删除了所有幻灯片放映HTML。这让我相信这是一个CSS问题。

任何建议都会受到赞赏！

这是HTML 

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Stigler Public Schools</title>
  <link rel="stylesheet" href="http://www.w3schools.com/lib/w3.css">
  <link rel="stylesheet" type="text/css" href="\\stigler-web\web\New Website\caleab\stiglerstylesheet.css"/>
</head>
<body>
    <img class="logo" src="sps_logo.png" alt="Stigler Public Schools">
    <p class="header">Stigler Public Schools</p>
    <div class="nav">
      <ul class="navigation">
      <a class="main" href="#url">District</a>
  <li class="n1"><a href="\\stigler-web\web\New Website\caleab\District\hs\hs.html">High School</a></li>
  <li class="n2"><a href="\\stigler-web\web\New Website\caleab\District\ms\ms.html">Middle School</a></li>
  <li class="n3"><a href="\\stigler-web\web\New Website\caleab\District\gs\gs.html">Grade School</a></li>
  <li class="n4"><a href="\\stigler-web\web\New Website\caleab\District\admin\admin.html">Administration</a></li>
    </ul>
    <ul class="navigation">
      <a class="main" href="#url">Resources</a>
      <li class="n1"><a href="school_calendar.html" target="main">School Calender</a></li>
      <li class="n2"><a href="cafeteria_menus.html" target="main">Menus</a></li>
      <li class="n3"><a href="employment_opportunities.html" target="main">Employment</a></li>
      <li class="n4"><a href="counselor.html" target="main">Counseling</a></li>
      <li class="n5"><a href="https://wengage.com/Stigler/Login/AttemptLogin?ReturnUrl=%2fstigler.html">Grade Book</a></li>
      <li class="n6"><a href="http://www.jostens.com/yearbooks/high-school-yearbooks.html">Yearbook</a></li>
    </ul>
    </td>
    <ul class="navigation">
      <a class="main" href="#url">Organizations</a>
      <li class="n1"><a href="" target="main">Athletics</a></li>
      <li class="n2"><a href="#" target="main">Music</a></li>
      <li class="n3"><a href="" target="main">Drama</a></li>
      <li class="n4"><a href="#">FFA</a></li>
      <li class="n5"><a href="#">A-Z</a></li>
    </ul>

    <ul class="navigation">
      <a class="main" href="#url">Board Of Education</a>
        <li class="n1"><a href="board_of_education.html" target="main">Information</a></li>
      <li class="n2"><a href="policy.html#" target="main">Meetings</a></li>
      <li class="n3"><a href="#">Policies</a></li>
    </ul>
  </div>

  </body>
</html>

这是CSS 

* {
  margin: 0px;
  padding: 0px;
  outline: none;
  border: 0px;
}

body {
  background-image: url(background.png);
  background-repeat: no-repeat;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  background-size: cover;
  margin: 0px auto;
  padding: 0px;
  width: 100%;
  overflow: hidden;
}

h1 {
  border-top: none;
  border-left: none;
  border-bottom: 5px groove red;
  border-right: none;
  color: #e60000;
  font-family: century gothic;
  text-align: center;
  color: #FF000;
}

h2 {
  font-family: century gothic;
}

h3 {
  font-family: century gothic;
}

h5 {
  font-family: californian fb;
  font-szie: 1.15em;
}

p {
  border-top: none;
  border-left: none;
  border-bottom: none;
  border-right: none;
  font-family: californian fb;
  font-size: 1.15em;
}

table#sitelinks td {
  font-size: 1.15em;
}

table#sitelinks tr:nth-child(odd) {
  background-color: #fff
}

table tr:nth-child(even) {
  background-color: #fff
}

table tr:nth-child(odd) {
  background-color: #eee
}

hr {
  border-top: none;
  border-left: none;
  border-bottom: 5px groove red;
  border-right: none;
  font-family: californian fb;
  font-size: 1.15em;
}

th {
  text-align: left;
  font-family: century gothic;
  padding: 10px 0px 0px 0px;
  font-size: 1.15em;
}

td {
  font-family: century gothic;
  border: 1px solid black;
  padding: 5px 5px 5px 5px;
  text-align: center;
  font-size: 1em;
}

.center {
  text-align: center;
}

.blue {
  color: blue;
}

.bottomborder {
  text-align: center;
  border-bottom: 5px groove red;
}

a:link {
  color: #e60000;
  text-decoration: none
}

a:visited {
  color: #e60000;
  text-decoration: none
}

a:hover {
  color: #e60000;
  text-decoration: none
}

a:active {
  color: #e60000;
  text-decoration: none
}

.logo {
  display: block;
  margin: 0 auto;
  height: 160px;
  width: 160px;
}

.header {
  padding-left: 140px
}

a {
  display: block;
  text-decoration: none;
  width: 100%;
  height: 100%;
  color: #999;
}

.navwrapper {}

.nav {
  width: 79.31%;
  text-align: center;
  margin: 0px auto;
  z-index: 2;
  position: relative;
}

a:hover {
  color: #FF0000;
}


/* NAVIGATION */

.navigation {
  list-style: none;
  margin: 0;
  padding: 0;
  height: 40px;
  margin: 10px auto;
  background: #FF0000;
  float: left;
  position: relative;
  z-index: 10
}

.navigation,
.navigation a.main {
  border-radius: 0px;
  -webkit-border-radius: 0px;
  -moz-border-radius: 0px;
}

.navigation:hover,
.navigation:hover a.main {
  border-radius: 0px 0px 0 0;
  -webkit-border-radius: 0px 0px 0 0;
  -moz-border-radius: 0px 0px 0 0;
}

.navigation a.main {
  display: inline-block;
  height: 40px;
  font: bold 15px/40px arial, sans-serif;
  text-align: center;
  text-decoration: none;
  color: #FFF;
  -webkit-transition: 0.2s ease-in-out;
  -o-transition: 0.2s ease-in-out;
  transition: 0.2s ease-in-out;
}

.navigation:hover a.main {
  color: rgba(0, 0, 0, 0.6);
  background: rgba(0, 0, 0, 0.04);
}

.navigation li {
  width: 250px;
  height: 40px;
  background: #F7F7F7;
  font: normal 12px/40px arial, sans-serif !important;
  color: #999;
  text-align: center;
  margin: 0;
  -webkit-transform-origin: 50% 0%;
  -o-transform-origin: 50% 0%;
  transform-origin: 50% 0%;
  -webkit-transform: perspective(350px) rotateX(-90deg);
  -o-transform: perspective(350px) rotateX(-90deg);
  transform: perspective(350px) rotateX(-90deg);
  box-shadow: 0px 2px 10px rgba(0, 0, 0, 0.05);
  -webkit-box-shadow: 0px 2px 10px rgba(0, 0, 0, 0.05);
  -moz-box-shadow: 0px 2px 10px rgba(0, 0, 0, 0.05);
  position: relative;
  z-index: 30;
  overflow: visible;
}

.navigation li:nth-child(even) {
  background: #F5F5F5;
}

.navigation li:nth-child(odd) {
  background: #EFEFEF;
}

.navigation li.n1 {
  -webkit-transition: 0.2s linear 0.4s;
  -o-transition: 0.2s linear 0.4s;
  transition: 0.2s linear 0.4s;
}

.navigation li.n2 {
  -webkit-transition: 0.2s linear 0.3s;
  -o-transition: 0.2s linear 0.3s;
  transition: 0.2s linear 0.3s;
}

.navigation li.n3 {
  -webkit-transition: 0.2s linear 0.2s;
  -o-transition: 0.2s linear 0.2s;
  transition: 0.2s linear 0.2s;
}

.navigation li.n4 {
  -webkit-transition: 0.2s linear 0.1s;
  -o-transition: 0.2s linear 0.1s;
  transition: 0.2s linear 0.1s;
}

.navigation li.n5 {
  border-radius: 0px 0px 4px 4px;
  -webkit-transition: 0.2s linear 0s;
  -o-transition: 0.2s linear 0s;
  transition: 0.2s linear 0s;
}

.navigation:hover li {
  -webkit-transform: perspective(350px) rotateX(0deg);
  -o-transform: perspective(350px) rotateX(0deg);
  transform: perspective(350px) rotateX(0deg);
  -webkit-transition: 0.2s linear 0s;
  -o-transition: 0.2s linear 0s;
  transition: 0.2s linear 0s;
}

.navigation:hover .n2 {
  -webkit-transition-delay: 0.1s;
  -o-transition-delay: 0.1s;
  transition-delay: 0.1s;
}

.navigation:hover .n3 {
  -webkit-transition-delay: 0.2s;
  -o-transition-delay: 0.2s;
  transition-delay: 0.2s;
}

.navigation:hover .n4 {
  transition-delay: 0.3s;
  -o-transition-delay: 0.3s;
  transition-delay: 0.3s;
}

.navigation:hover .n5 {
  -webkit-transition-delay: 0.4s;
  -o-transition-delay: 0.4s;
  transition-delay: 0.4s;
}

.navigation:hover .n6 {
  -webkit-transition-delay: 0.5s;
  -o-transition-delay: 0.5s;
  transition-delay: 0.5s
}


/* End Navigation */


/*Slideshow */

* {
  box-sizing: border-box
}

body {
  font-family: Verdana, sans-serif;
}

.mySlides {
  display: none;
  overflow: hidden;
}

.slideshowimg {
  min-width: 100%;
  max-width: 100%;
  max-height: none;
  border: 2px solid #ffffff
}


/* Slideshow container */

.slideshow-container {
  max-width: 1000px;
  min-width: 1000px;
  min-height: 500px;
  max-height: 500px;
  position: fixed;
  margin: 0px auto;
  clear: both;
  z-index: 1;
  position: relative;
  overflow: hidden;
}


/* Caption text */

.text {
  color: #f2f2f2;
  font-size: 30px;
  padding: 8px 12px;
  position: absolute;
  bottom: 8px;
  width: 100%;
  text-align: center;
}


/* Number text (1/3 etc) */

.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}


/* The dots/bullets/indicators */

.dot {
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: #bbb;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.6s ease;
}

.active {
  background-color: #717171;
}


/* Fading animation */

.fade {
  -webkit-animation-name: fade;
  -webkit-animation-duration: 1.5s;
  animation-name: fade;
  animation-duration: 1.5s;
}

@-webkit-keyframes fade {
  from {
    opacity: .4
  }
  to {
    opacity: 1
  }
}

@keyframes fade {
  from {
    opacity: .4
  }
  to {
    opacity: 1
  }
}


/* On smaller screens, decrease text size */

@media only screen and (max-width: 300px) {
  .text {
    font-size: 11px
  }
}


/* End Slideshow */

1 个答案:

答案 0 :(得分：0)

我自己解决了这个问题。我意识到，由于下拉菜单下没有更多内容，页面在技术上已经结束，因此消失的菜单。至少这是我的结论。将预期内容添加到页面后，它们工作正常。

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