html - Wordpress CSS 媒体查询导致子菜单与主菜单一致

Question

我是 CSS 的新手，所以我尽力解决这个问题，但我似乎被卡住了。

导航栏在桌面上工作得很好，但是一旦调整屏幕大小并激活下拉菜单，子菜单就会与主菜单显示一致。查看 jsfiddle:

https://jsfiddle.net/shajar93/q3xg37bs/3/

子菜单在没有 @media CSS 的情况下也能正常工作，导航的 CSS 是:

#navigation {
    text-align: center;
    background: #464646;
    min-height: 40px;
    width: 100%;
    display: inline-block;
  }

  #navigation .btn-navbar {
    background: url('img/nav-collapse.png') no-repeat;
    border: none;
    border-radius: 0;
    box-shadow: none;
    height: 40px;
    margin: 0;
    padding: 0;
    width: 53px;
  }

  #navigation .caret {
    border-bottom-color: #fff;
    border-top-color: #fff;
    margin-top: 10px;
    margin-left: 5px;
  }

  #navigation ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: inline-block;
  }

  #navigation ul li {
    display: inline-block;
    float: left;
    position: relative;
  }

  #navigation ul li.active {
    background: #fff;
  }

  #navigation ul li:first-child a {
    border-left: 1px solid #333;
  }

  #navigation ul li a {
    border-right: 1px solid #333;
    color: #fff;
    display: block;
    padding: 10px 18px;
    text-decoration: none;
  }

  #navigation ul li.active a {
    color: #333;
  }

  #navigation ul li:hover a,
  #navigation ul li a:hover {
    background: #fff;
    color: #333;
  }

  #navigation ul li.active .caret,
  #navigation ul li:hover .caret,
  #navigation ul li a:hover .caret {
    border-bottom-color: #333;
    border-top-color: #333;
  }

  #navigation ul li:hover ul {
    left: -4px;
  }

  #navigation ul li ul {
    background: #FFF;
    border-bottom: 4px solid #EEE;
    border-right: 4px solid #EEE;
    border-left: 4px solid #EEE;
    left: -999em;
    width: 220px;
    padding-bottom: 5px;
    position: absolute;
    z-index: 2000;
  }

  #navigation ul li ul li {
    width: 100%;
  }

  #navigation ul li ul li a {
    border: none !important;
    color: #333333;
  }

媒体 CSS 是:

 @media (max-width: 767px) {
    body {
      padding-left: 0;
      padding-right: 0;
    }
    #navigation .container,
    #breadcrumbs .container {
      padding: 0 20px;
    }
    #content {
      padding: 20px 20px 10px;
    }
    .container {
      width: 100%;
    }
    #masthead,
    #masthead .container {
      height: auto;
    }
    #masthead .logo {
      margin-bottom: 50px;
      width: 100%;
    }
    /*.home #masthead,
.home #masthead .container {
    height: 160px;
}

.home #masthead .logo {
    margin-top: 50px;
}*/
    #navigation .container {
      padding: 0;
    }
    #navigation .btn-navbar {
      margin-left: 10px;
    }
    .left-content {
      padding: 0 10px;
      width: 100%;
    }
    .right-content {
      margin-top: 20px;
      margin-left: 0;
      width: 100%;
    }
    .home .widget h3 {
      background: #485566;
      border: 0;
      color: #FFF;
      line-height: normal;
      margin: 0;
      padding: 10px;
    }
    .home .widget_newsletter_widget h3 {
      background: none;
      border-bottom: 1px solid #EEE;
      color: #4B7FBF;
      margin-bottom: 10px;
      padding-top: 0;
      padding-left: 0;
    }
    #affiliations,
    #footer,
    #footer-bottom {
      padding-right: 20px;
      padding-left: 20px;
    }
    #affiliations p {
      width: 80%;
    }
    #affiliations .control-group {
      display: block;
    }
    #affiliations input,
    #affiliations button {
      display: block;
      margin: 0 auto 10px;
    }
    #affiliations input {
      width: 80%;
    }
  }

  @media (max-width: 480px) {
    .widget {
      margin-left: 0 !important;
      padding-left: 0;
      padding-right: 0;
      width: 100%;
    }
    .widget ul li img {
      margin-left: 0;
    }
  }

  @media (min-width: 767px) and (max-width: 1080px) {
    .container,
    #masthead .logo {
      width: 680px;
    }
    #masthead,
    #masthead .container {
      height: 180px;
    }
    /*.home #masthead,
.home #masthead .container {
    height: 210px;
}

.home #masthead .logo {
    margin-top: 70px;
}*/
    .row-fluid [class*="span"] {
      margin-left: 2.5%;
    }
  }

  @media (max-width: 979px) {
    #navigation ul {
      float: left;
      margin-bottom: 20px;
      width: 100%;
      display: block;
    }
    #navigation ul li {
      display: block;
      width: 100%;
    }
    #navigation ul li:first-child a {
      border-left: none;
    }
    #navigation ul li.active,
    #navigation ul li.active a,
    #navigation ul li:hover,
    #navigation ul li:hover a,
    #navigation ul li:hover ul li,
    #navigation ul li:hover ul li a {
      background: none;
      color: #fff;
    }
    #navigation ul li .caret {
      border-bottom-color: #fff;
      border-top-color: #fff;
      margin-top: 10px;
      margin-left: 5px;
    }
    #navigation ul li a {
      border-right: 0;
      border-bottom: 1px solid #333;
    }
    #navigation ul li ul {
      background: none;
      border: 0;
      left: auto;
      margin: 0;
      padding: 0;
      position: static;
      width: 100%;
    }
    #navigation ul li ul li a {
      border-bottom: 1px solid #333 !important;
      color: #FFF;
    }
  }

  @media (min-width: 767px) {
    #navigation .btn-navbar {
      display: none;
    }
  }

  @media (min-width: 1px) {
    .right-content {
      width: 250px;
    }
  }

该站点运行的是 twentytwelve 的子主题。

我们将不胜感激。

谢谢

Answer 1

给你。

#navigation ul li ul.sub-menu {
  display: none;
}
@media screen and (min-width: 979px) {
  #navigation ul li ul.sub-menu {
    display: block;
  }
}

Updated fiddle .