html - Css Transform 倾斜边缘

Question

大家早上好我想像这样在我的菜单中倾斜边缘:

我尝试设置 li first child 和 last-child 伪类 css.. 我的代码:http://www.bootply.com/9sOm7siHNT

如何实现？

Answer 1

不要将 background-color: #000 赋予您的 UL 标签，而是将背景色赋予您的 li 标签。

.main_menu .navbar-header {} .main_menu .navbar-toggle {
  border: 1px solid #fff;
}
.main_menu .navbar-toggle .icon-bar {
  background-color: #fff;
}
.main_menu .navbar .navbar-nav {
  display: inline-block;
  float: none;
  vertical-align: top;
}
.main_menu .navbar-nav li {
  background-color: #000;
  transform: skew(-20deg);
  /* SKEW */
  -webkit-transition: 0.3s;
  -moz-transition: 0.3s;
  -o-transition: 0.3s;
  transition: 0.3s;
  position: relative;
  z-index: 99;
}
.main_menu .navbar .navbar-nav li:first-child:before {
  left: -13px;
  top: 0;
  bottom: 0;
  right: 0;
  background-color: #000;
  width: 26px;
  height: 34px;
  position: absolute;
  transform: skew(-20deg);
}
.main_menu .navbar-nav li a {
  font-size: 15px;
  color: #fff;
  font-family: 'Open Sans', sans-serif;
  padding: 7px 12px;
  transform: skew(20deg);
}
.main_menu .navbar-nav li:after {
  content: '|';
  position: absolute;
  color: #333;
  left: 0;
  top: 5px;
  transform: skew(20deg);
  vertical-align: middle;
  z-index: -999;
  -webkit-transition: 0.1s;
  -moz-transition: 0.1s;
  -o-transition: 0.1s;
  transition: 0.1s;
}
/*.main_menu .navbar-nav li:first-child {`
	transform: skew(-20deg);
	background-color: #000;
}*/

.main_menu .navbar-nav .active,
.main_menu .navbar-nav li:hover,
.main_menu .nav>li:focus {
  background-color: #067bbe;
}
.main_menu .navbar-nav li:hover:after,
.main_menu .navbar-nav li:hover+li:after {
  content: '';
}
.main_menu .nav>li>a:hover,
.main_menu .nav>li>a:focus {
  background-color: transparent;
}
.main_menu .navbar .navbar-collapse {
  text-align: center;
}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />

<div class="main_menu">
  <nav class="navbar navbar_main">
    <div class="container-fluid">
      <!-- Brand and toggle get grouped for better mobile display -->
      <div class="navbar-header">
        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#main_menu" aria-expanded="false">
          <span class="sr-only">Toggle navigation</span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </button>
      </div>

      <!-- Collect the nav links, forms, and other content for toggling -->
      <div class="collapse navbar-collapse" id="main_menu">
        <ul class="nav navbar-nav">
          <li><a href="#">ХРОНОЛОГИЯ <span class="sr-only">(current)</span></a>
          </li>
          <li><a href="#">ПРОИЗВОДСТВО</a>
          </li>
          <li><a href="#">БРЕНДЫ</a>
          </li>
          <li><a href="#">ВАКАНСИИ</a>
          </li>
          <li><a href="#">ОТЗЫВЫ</a>
          </li>
          <li><a href="#">КОНТАКТЫ</a>
          </li>
          <li><a href="#">FASHION БЛОГ</a>
          </li>
        </ul>
      </div>
      <!-- /.navbar-collapse -->
    </div>
    <!-- /.container-fluid -->
  </nav>
</div>