页脚不显示或粘在底部 - 隐藏在导航后面，z-index 不工作

Question

我有页脚，但没有显示。这是一个example。所以我想要一个粘性页脚（页脚不是 'fixed'，而是留在底部），到目前为止它被导航隐藏（我认为）。我已经尝试将 z-index 更改为高于导航，但它仍然隐藏。代码：

HTML

  <!-- Navigation -->
  <div class="nav">
    <div class="nContainer">
        <ul class="pull-left">
          <li class="active"><a>home</a></li>
          <li><a href="#">about us</a></li>
        <li><a href="#">contact us</a></li>
      </ul>
        <ul class="pull-right">
          <li><a href="#">sign up</a></li>
          <li><a href="#">log in</a></li>
      </ul>
    </div>
    </div>

    <!-- Collapse -->
    <div class="collapse">
    <h1 style="position: relative; top: 50%; transform: translateY(-50%);">Lorem ipsum dolor sit amet.</h1>
    </div>

  <!-- Content -->
  <div class="content">
      <div class="container">
        <h1>Lorem Ipsum Dolor</h1>
        <p>Lorem ipsum dolor...</p>
      </div>
    </div>

    <div class="footer">
        <p class="copyright">&copy; 2015 Lorem Ipsum</p>
    </div>

CSS

* {
  margin: 0;
  padding: 0;
  list-style: none;
  text-decoration: none;
}

html {
  position: relative;
  min-height: 100%;
}

.nav {
  margin-bottom: 20px;
  margin-left: 0;
  background-color: #fff;
  height: 60px;
  width: 100%;
  position: fixed;
  box-shadow: 0px 5px 5px #696969;
  z-index: 2;
}

.nav > li > a {
  display: block;
}

.pull-right {
  float: right;
}

.pull-left {
  float: left;
}

.nav a {
  font-family: 'ABeeZee', sans-serif;
  color: #b3b3ff;
  padding: 14px 10px;
  -webkit-transition: color 0.2s ease-in-out;
  -moz-transition: color 0.2s ease-in-out;
  -o-transition: color 0.2s ease-in-out;
  transition: color 0.2s ease-in-out;
}

.nav a:hover {
  color: #5a5a5a;
}

.nav li {
  display: inline;
}

.nav .active a {
  color: #5a5a5a;
  cursor: default;
}

.nContainer {
  margin-top: 20px;
}

.collapse {
  background-image: url('http://placehold.it/1280x720');
  background-size: cover;
  background-repeat: no-repeat;
  height: 600px;
  position: fixed;
  left: 0;
  right: 0;
  z-index: -1
  text-align: center;
}

.collapse h1 {
  color: #fff;
  font-family: 'Shift', sans-serif;
  font-size: 72px;
}

.content {
  background-color: #fff;
  position: relative;
  top: 600px;
  z-index: 1;
}

.content h1 {
  color: #393c3d;
  font-size: 24px;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.container {
  width: 90%;
}

.container {
  margin-right: auto;
  margin-left: auto;
  *zoom: 1;
}

.container:before,
.container:after {
  display: table;
  line-height: 0;
  content: "";
}

.container:after {
  clear: both;
}

.container h1 {
  margin-top: 4%;
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
}

.container p {
  font-family: 'Lato', sans-serif;
}

.footer {
  height: 50px;
  width: 100%;
  bottom: 0;
  z-index: 10;
}

Answer 1

看到这个fiddle

为了使 z-index 正常工作，您应该首先使用 css 定位来放置 div。

所以，试试这个 CSS 作为您的页脚

.footer {
    height: 50px;
    width: 100%;
    bottom: 0;
    position: fixed;
    z-index: 10;
}

Answer 2

用以下

替换您的CSS代码

.footer {
   height: 50px;
   width: 100%;
   bottom: 0;
   position: fixed.
}

:fixed

不需要 z-index

Answer 3

勾选这个Fiddle

.footer {
    height: 20px;
    width: 100%;
    bottom: 0;
    position: fixed;
    z-index: 10;
    background-color: #fff;
    padding: 20px 0;
}

Answer 4

你的描述不是很清楚-你想让它留在底部，但不是固定的？

我假设您希望它出现在内容的底部（即不固定在浏览器的底部）——在这种情况下，您只需必须将页脚元素移动到内容元素中。

  <!-- Content -->
  <div class="content">
      <div class="container">
        <h1>Lorem Ipsum Dolor</h1>
        <p>Lorem ipsum dolor sit amet, cons...</p>
      </div>

      <div class="footer">
        <p class="copyright">&copy; 2015 Lorem Ipsum</p>
      </div>
 </div>

http://jsfiddle.net/5gqetr34

Answer 5

试试这个

* {
  margin: 0;
  padding: 0;
  list-style: none;
  text-decoration: none;
}

html {
  min-height: 100%;
}

.nav {
  margin-bottom: 20px;
  margin-left: 0;
  background-color: #fff;
  height: 60px;
  width: 100%;
  position: fixed;
  box-shadow: 0px 5px 5px #696969;
  z-index: 1;
}

.nav > li > a {
  display: block;
}

.pull-right {
  float: right;
}

.pull-left {
  float: left;
}

.nav a {
  font-family: 'ABeeZee', sans-serif;
  color: #b3b3ff;
  padding: 14px 10px;
  -webkit-transition: color 0.2s ease-in-out;
  -moz-transition: color 0.2s ease-in-out;
  -o-transition: color 0.2s ease-in-out;
  transition: color 0.2s ease-in-out;
}

.nav a:hover {
  color: #5a5a5a;
}

.nav li {
  display: inline;
}

.nav .active a {
  color: #5a5a5a;
  cursor: default;
}

.nContainer {
  margin-top: 20px;
}

.collapse {
  background-image: url('http://placehold.it/1280x720');
  background-size: cover;
  background-repeat: no-repeat;
  height: 600px;
  position: center bottom;
  left: 0;
  right: 0;
  text-align: center;
}

.collapse h1 {
  color: #fff;
  font-family: 'Shift', sans-serif;
  font-size: 72px;
}

.content {
  background-color: #fff;
  position: relative;
}

.content h1 {
  color: #393c3d;
  font-size: 24px;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.container {
  width: 90%;
  margin-right: auto;
  margin-left: auto;
}

.container:before,
.container:after {
  display: table;
  line-height: 0;
  content: "";
}

.container:after {
  clear: both;
}

.container h1 {
  margin-top: 4%;
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
}

.container p {
  font-family: 'Lato', sans-serif;
}

.footer{
  position: relative;
  padding-top: 20px;
  height: 50px;
  z-index: 2;
  bottom: 0;
}

<!-- Navigation -->
  <div class="nav">
    <div class="nContainer">
        <ul class="pull-left">
          <li class="active"><a>home</a></li>
          <li><a href="#">about us</a></li>
        <li><a href="#">contact us</a></li>
      </ul>
        <ul class="pull-right">
          <li><a href="#">sign up</a></li>
          <li><a href="#">log in</a></li>
      </ul>
    </div>
    </div>

    <!-- Collapse -->
    <div class="collapse">
    <h1 style="position: relative; top: 50%; transform: translateY(-50%);">Lorem ipsum dolor sit amet.</h1>
    </div>

  <!-- Content -->
  <div class="content">
      <div class="container">
        <h1>Lorem Ipsum Dolor</h1>
        <p>Lorem ipsum dolor...</p>
      </div>
    </div>

    <div class="footer">
        <p class="copyright">&copy; 2015 Lorem Ipsum</p>
    </div>

页脚不显示或粘在底部 - 隐藏在导航后面，z-index 不工作

footer not showing or sticking to bottom - hidden behind nav, z-index not working

html

css

simple-html-dom

看到这个fiddle