无序列表中子菜单列表项的继承问题

时间：2016-07-03 15:31:13

标签： html css

我正在调整自适应移动菜单，使其在各种移动设备屏幕尺寸上显示为全屏布局，因此我使用百分比表示链接宽度（85％）而非固定因为我在大屏幕上的价值。

我将li设置为width:100%，将a标记设置为width:85%。在从属列表项目中，我在左侧添加了14px填充，以使它们在视觉上突出。问题是，使用左侧的填充，列表项随着菜单的每个级别变宽。

我发现解决这个问题的唯一两种方法都会引发新的问题。例如，我尝试将li和a标记同时设置为100％宽度，但这会导致底部的1px边框丢失任一边的边距，从而使边框全宽。

其次，我尝试将列表项设置为85％宽度并将a设置为100％，但这会切断子菜单按钮上的某些填充，这意味着您无法单击整个按钮

我在这里错过了一些简单的东西吗？任何见解都会很棒。

https://jsfiddle.net/8nj5y4t1/48/

HTML： 

<nav class="main-menu" id="mobile">
    <div class="menu-header-menu-container">
        <ul id="menu-header-menu-1" class="menu">
            <li class="hide-desktop menu-item menu-item-type-post_type menu-item-object-page menu-item-1386"><a href="http://www.mywebsite.com">Link 1</a></li>
            <li class="open menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-463"><a href="http://www.mywebsite.comwork/">Link 2</a>
                <ul class="sub-menu">
                    <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-584"><a href="http://www.mywebsite.comwork/landscapes/">Child-link 1</a></li>
                    <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-473"><a href="http://www.mywebsite.comwork/seascapes/">Child-link 2</a></li>
                    <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-478"><a href="http://www.mywebsite.comwork/macro/">Child-link 3</a></li>
                    <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-477"><a href="http://www.mywebsite.comwork/cities/">Child-link 4</a></li>
                    <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-475"><a href="http://www.mywebsite.comwork/long-exposure/">Child-link 5</a>
                        <ul class="sub-menu">
                            <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-480"><a href="http://www.mywebsite.comwork/miscellaneous/">Grandchild-link 1</a></li>
                        </ul>
                    </li>
                </ul>
            </li>
            <li class="menu-item menu-item-type-post_type menu-item-object-page current-menu-item page_item page-item-2 current_page_item menu-item-has-children menu-item-10"><a href="http://www.lucieaverillphotography.co.uk/about/">Link 3</a>
            </li>
            <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-464"><a href="http://www.lucieaverillphotography.co.uk/shop/">Link 4</a></li>
            <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-14"><a href="http://www.lucieaverillphotography.co.uk/contact/">Link 5</a></li>
        </ul>
    </div>
</nav>

CSS： 

nav.main - menu# mobile {
    width: 400 px;
}

nav.main - menu# mobile ul {
    position: relative;
    overflow: auto;
    margin: 0;
    padding: 0;
}

nav.main - menu# mobile ul li {
    position: relative;
    display: inline - block;
    float: left;
    width: 100 % ;
    margin: 0 px;
    background - color: grey;
}

nav.main - menu# mobile ul li a {
    display: inline - block;
    height: auto;
    width: 85 % ;
    margin: 0 px 7.5 % 0 px 7.5 % ;
    padding: 15 px 0 px 15 px 0 px;
    background - color: pink;
    color: #888888;
  border-bottom: 1px solid # F1F1F1;
    text - decoration: none!important;
}

.submenu - button {
    position: absolute;
    top: 0;
    right: 8 px;
    float: right;
    width: 15 px;
    height: 19 px;
    padding: 17 px;
    background - color: purple;
    cursor: pointer;
}

nav.main - menu# mobile ul ul {
    max - height: 0;
    transition: all 1.2 s;
}

nav.main - menu# mobile ul ul.open {
    max - height: 1000 px;
}

nav.main - menu# mobile ul ul li {
    margin: 0;
    transition: all 1 s;
    opacity: 0;
    transition: opacity 1.5 s!important;
}

nav.main - menu# mobile ul ul li.open {
    opacity: 1;
    transition: opacity 1 s!important;
}

nav.main - menu# mobile ul ul li a {
    padding: 15 px 0 15 px 14 px;
}

nav.main - menu# mobile ul ul ul li a {
    padding: 15 px 0 15 px 28 px;
}

2 个答案:

答案 0 :(得分：0)

我检查了你的菜单有一些问题。我决定创建纯CSS菜单的最佳方式，如您的参考网站。它简单而优雅。

请查看演示

CSS - 响应式菜单

＆＃13;
＆＃13; 
@import url(http://fonts.googleapis.com/css?family=roboto);
body {
  background: #212121;
  font-size: 22px;
  line-height: 32px;
  color: #ffffff;
  margin: 0;
  padding: 0;
  word-wrap: break-word !important;
  font-family: 'roboto', sans-serif;
}

h1 {
  font-size: 60px;
  text-align: center;
  color: #FFF;
}

h3 {
  font-size: 30px;
  line-height: 34px;
  text-align: center;
  color: #FFF;
}

h3 a { color: #FFF; }

a { color: #FFF; }

h1 {
  margin-top: 100px;
  text-align: center;
  font-size: 60px;
  line-height: 70px;
  font-family: 'roboto', sans-serif;
}

#container {
  margin: 0 auto;
  max-width: 890px;
}

p { text-align: center; }
 .toggle, [id^=drop] {
 display: none;
}

nav {
  margin: 0;
  padding: 0;
  background-color: #254441;
}

#logo {
  display: block;
  padding: 0 30px;
  float: left;
  font-size: 20px;
  line-height: 60px;
}

nav:after {
  content: "";
  display: table;
  clear: both;
}

nav ul {
  float: right;
  padding: 0;
  margin: 0;
  list-style: none;
  position: relative;
}

nav ul li {
  position: relative;
  margin: 0px;
  display: inline-block;
  float: left;
  background-color: #254441;
}

nav a {
  display: block;
  padding: 0 20px;
  color: #FFF;
  font-size: 20px;
  line-height: 60px;
  text-decoration: none;
  -webkit-transition: all .3s ease-out;
	-moz-transition:    all .3s ease-out;
	-ms-transition:     all .3s ease-out;
	-o-transition:      all .3s ease-out;
	transition:         all .3s ease-out;
}

nav ul li ul li:hover { background: #000000; }
nav a:hover { background-color: #000000; }

nav ul ul {
  display: none;
  position: absolute;
  top: 60px;
}

nav ul li:hover > ul { display: inherit; }

nav ul ul li {
  width: 170px;
  float: none;
  display: list-item;
  position: relative;
}

nav ul ul ul li {
  position: relative;
  top: -60px;
  left: 170px;
}

li > a:after { content: ' +'; }
li > a:only-child:after { content: ''; }

/* Media Queries
--------------------------------------------- */

@media all and (max-width : 959px) {

#logo { display: none; }

nav { margin: 0; }

.toggle + a,
 .menu { display: none; }

.toggle {
  display: block;
  background-color: #254441;
  padding: 0 20px;
  color: #FFF;
  font-size: 20px;
  line-height: 60px;
  text-decoration: none;
  border: none;
}

.toggle:hover { background-color: #000000; }

[id^=drop]:checked + ul { display: block; }

nav ul li {
  display: block;
  width: 100%;
  border-bottom: 1px solid #1f1f1f;
}

nav ul ul .toggle,
nav ul ul a { padding: 0 40px; }
nav ul ul ul a { padding: 0 80px; }
nav a:hover,
nav ul ul ul a { background-color: #000000; }
nav ul li ul li .toggle,
nav ul ul a { background-color: #212121; }
nav ul ul {
  float: none;
  position: static;
  color: #ffffff;
}
nav ul ul li:hover > ul,
nav ul li:hover > ul { display: none; }
nav ul ul li {
  display: block;
  width: 100%;
  border-bottom: 1px solid #2b2929;
}
nav ul ul ul li { position: static; }
.toggle span {
      position: absolute;
      right: 0;
      background-color: #888888;
      padding: 0 20px;
  }
}
@media all and (max-width : 330px) {
nav ul li {
  display: block;
  width: 100%;
}
}
＆＃13; 
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css">
<nav>
  <div id="logo">Responsive Menu</div>
  <label for="drop" class="toggle">Menu <span><i class="fa fa-bars fa-1"></i></span></label>
  <input type="checkbox" id="drop" />
  <ul class="menu">
    <li><a href="#">Home</a></li>
    <li>
      <!-- First Tier Drop Down -->
      <label for="drop-1" class="toggle">Service <span>+</span></label>
      <a href="#">Service</a>
      <input type="checkbox" id="drop-1"/>
          <ul>
            <li><a href="#">Service 1</a></li>
            <li><a href="#">Service 2</a></li>
            <li><a href="#">Service 3</a></li>
          </ul>
    </li>
    <li>

      <!-- First Tier Drop Down -->
      <label for="drop-2" class="toggle">Portfolio <span>+</span></label>
      <a href="#">Portfolio</a>
      <input type="checkbox" id="drop-2"/>
      <ul>
        <li><a href="#">Portfolio 1</a></li>
        <li><a href="#">Portfolio 2</a></li>
        <li>

          <!-- Second Tier Drop Down -->
          <label for="drop-3" class="toggle">Works <span>+<span></label>
          <a href="#">Works</a>
          <input type="checkbox" id="drop-3"/>
          <ul>
            <li><a href="#">HTML/CSS</a></li>
            <li><a href="#">jQuery</a></li>
            <li><a href="#">Python</a></li>
          </ul>
        </li>
      </ul>
    </li>
    <li><a href="#">Blog</a></li>
    <li><a href="#">Submit</a></li>
    <li><a href="#">Contact</a></li>
    <li><a href="#">About</a></li>
  </ul>
</nav>
＆＃13;
＆＃13;
＆＃13;

JS + CSS - 演示（原创）

＆＃13;
＆＃13; 
jQuery(document).ready(function($) {
    $('<span class="submenu-button">+</span>').insertBefore('nav.main-menu#mobile ul li:not(.hide-mobile) ul').parent('li');
    $('.submenu-button').click(function() {
        $(this).toggleClass('open');
        $(this).next().toggleClass('open').children('li').toggleClass('open').find('ul, .submenu-button').removeClass('open');
    });

});
＆＃13; 
nav.main-menu#mobile {
    width: 400px;
}
nav.main-menu#mobile ul {
    position: relative;
    overflow: hidden;
    margin: 0;
    padding: 0 13px 0 .5px;
    /*this line was edited*/
}
nav.main-menu#mobile ul li {
    position: relative;
    display: inline-block;
    float: left;
    width: 100%;
    margin: 0px;
    background-color: grey;
    overflow: hidden;
    /*this line is new*/
}
nav.main-menu#mobile ul li a {
    display: block;
    width: 85%;
    margin: 0px 7.5% 0px 7.5%;
    padding: 15px 0px 15px 0px;
    background-color: pink;
    color: #888888;
    border-bottom: 1px solid #F1F1F1;
    text-decoration: none !important;
}
.submenu-button {
    position: absolute;
    top: 0;
    right: 29px;
    float: right;
    height: 15px;
    padding: 17px 20px;
    background-color: purple;
    cursor: pointer;
    z-index: 1;
}
.sub-menu .submenu-button{
    right: 16px;
}
nav.main-menu#mobile ul ul {
    max-height: 0;
    transition: all 1.2s;
}
nav.main-menu#mobile ul ul.open {
    max-height: 1000px;
}
nav.main-menu#mobile ul ul li {
    margin: 0;
    transition: all 1s;
    opacity: 0;
    transition: opacity 1.5s !important;
}
nav.main-menu#mobile ul ul li.open {
    opacity: 1;
    transition: opacity 1s !important;
}
nav.main-menu#mobile ul ul li a {
    padding: 15px 0 15px 14px;
}
nav.main-menu#mobile ul ul ul li a {
    padding: 15px 0 15px 23px;
    /*this line was edited*/
}

/*----Below this line is new----*/
li.menu-item.menu-item-type-post_type.menu-item-object-page.menu-item-480.open {
    padding-left: 1px;
}
nav.main-menu#mobile ul ul li a {
    padding: 15px 0 15px 12px;
}
＆＃13; 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<nav class="main-menu" id="mobile">
  <div class="menu-header-menu-container">
    <ul id="menu-header-menu-1" class="menu">
      <li class="hide-desktop menu-item menu-item-type-post_type menu-item-object-page menu-item-1386">
        <a href="http://www.mywebsite.com">Link 1
        </a>
      </li>
      <li class="open menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-463">
        <a href="http://www.mywebsite.comwork/">Link 2
        </a>
        <ul class="sub-menu">
          <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-584">
            <a href="http://www.mywebsite.comwork/landscapes/">Child-link 1
            </a>
          </li>
          <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-473">
            <a href="http://www.mywebsite.comwork/seascapes/">Child-link 2
            </a>
          </li>
          <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-478">
            <a href="http://www.mywebsite.comwork/macro/">Child-link 3
            </a>
          </li>
          <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-477">
            <a href="http://www.mywebsite.comwork/cities/">Child-link 4
            </a>
          </li>
          <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-475">
            <a href="http://www.mywebsite.comwork/long-exposure/">Child-link 5
            </a>
            <ul class="sub-menu">
              <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-480">
                <a href="http://www.mywebsite.comwork/miscellaneous/">Grandchild-link 1
                </a>
              </li>
            </ul>
          </li>
        </ul>
      </li>
      <li class="menu-item menu-item-type-post_type menu-item-object-page current-menu-item page_item page-item-2 current_page_item menu-item-has-children menu-item-10">
        <a href="http://www.lucieaverillphotography.co.uk/about/">Link 3
        </a>
      </li>
      <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-464">
        <a href="http://www.lucieaverillphotography.co.uk/shop/">Link 4
        </a>
      </li>
      <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-14">
        <a href="http://www.lucieaverillphotography.co.uk/contact/">Link 5
        </a>
      </li>
    </ul>
  </div>
</nav>
＆＃13;
＆＃13;
＆＃13;

答案 1 :(得分：0)

如果我理解你想要做什么，下面的代码可能会有效。我只修改了JSfiddle链接中包含的CSS。

<强> CSS： 

nav.main-menu#mobile {
  width: 400px;
}

nav.main-menu#mobile ul {
  position: relative;
  overflow: auto;
  margin: 0;
  padding: 0 13px 0 .5px;          /*this line was edited*/
}

nav.main-menu#mobile ul li {
  position: relative;
  display: inline-block;
  float: left;
  width: 100%;
  margin: 0px;
  background-color: grey;
  overflow: hidden;               /*this line is new*/
}

nav.main-menu#mobile ul li a {
  display: inline-block;
  height: auto;
  width: 85%;
  margin: 0px 7.5% 0px 7.5%;
  padding: 15px 0px 15px 0px;
  background-color: pink;
  color: #888888;
  border-bottom: 1px solid #F1F1F1;
  text-decoration: none !important;
}

.submenu-button {
  position: absolute;
  top: 0;
  right: 8px;
  float: right;
  width: 15px;
  height: 19px;
  padding: 17px;
  background-color: purple;
  cursor: pointer;
  z-index: 1;                          /*this line is new*/
}

nav.main-menu#mobile ul ul {
  max-height: 0;
  transition: all 1.2s;
}

nav.main-menu#mobile ul ul.open {
  max-height: 1000px;
}

nav.main-menu#mobile ul ul li {
  margin: 0;
  transition: all 1s;
  opacity: 0;
  transition: opacity 1.5s !important;
}

nav.main-menu#mobile ul ul li.open {
  opacity: 1;
  transition: opacity 1s !important;
}

nav.main-menu#mobile ul ul li a {
  padding: 15px 0 15px 14px;
}

nav.main-menu#mobile ul ul ul li a {
  padding: 15px 0 15px 23px;             /*this line was edited*/
}

                /*----Below this line is new----*/

li.menu-item.menu-item-type-post_type.menu-item-object-page.menu-item-480.open {
        padding-left: 1px;
    }

    nav.main-menu#mobile ul ul li a {
        padding: 15px 0 15px 12px;
      }
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