Question

有什么方法可以使子菜单在父元素上使用clip-path时可见，还是无法实现？，如果不使用clip-path，则子菜单可见，但在clip-path中它是隐藏的。我尝试将可见性设置为隐藏在第三个ul元素上，但仍然不可见

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.nav {
  width: 50%;
}

.nav ul {
  display: flex;
  justify-content: space-between;
  background-color: #000;
}

.nav ul li {
  list-style: none;
  padding: 5px;
  position: relative;
}

.nav ul li a {
  text-decoration: none;
  text-transform: uppercase;
  color: #fff;
  display: block;
}

.nav ul li ul {
  position: absolute;
  top: 100%;
  width: 150px;
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  text-align: center;
  clip-path: polygon(0% 10%, 10% 10%, 10% 0%, 20% 10%, 100% 10%, 100% 100%, 0% 100%);
  overflow: visible;
}

.nav ul li ul li ul {
  position: absolute;
  left: 100%;
  top: 0;
  width: 150px;
  text-align: center;
  background-color: green;
}

<nav class="nav">
  <ul>
    <li><a href="#">menu1</a></li>
    <li><a href="#">menu2</a>
      <ul>
        <li><a href="">submenu1</a></li>
        <li><a href="">submenu2</a></li>
        <li><a href="">submenu3</a>
          <ul>
            <li><a href="">sub1</a></li>
            <li><a href="">sub2</a></li>
          </ul>
        </li>
        <li><a href="">submenu4</a></li>
      </ul>
    </li>
    <li><a href="#">menu3</a></li>
    </li>
    <li><a href="#">menu5</a></li>
  </ul>
</nav>

Answer 1

更新clip-path的百分比以覆盖更大的区域，如下所示。注意使用1000%代替100%

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.nav {
  width: 50%;
}

.nav ul {
  display: flex;
  justify-content: space-between;
  background-color: #000;
}

.nav ul li {
  list-style: none;
  padding: 5px;
  position: relative;
}

.nav ul li a {
  text-decoration: none;
  text-transform: uppercase;
  color: #fff;
  display: block;
}

.nav ul li ul {
  position: absolute;
  top: 100%;
  width: 150px;
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  text-align: center;
  clip-path: 
   polygon(0% 10%, 10% 10%, 10% 0%, 20% 10%, 1000% 10%, 1000% 1000%, 0% 1000%);
  overflow: visible;
}

.nav ul li ul li ul {
  position: absolute;
  left: 100%;
  top: 0;
  width: 150px;
  text-align: center;
  background-color: green;
}

<nav class="nav">
  <ul>
    <li><a href="#">menu1</a></li>
    <li><a href="#">menu2</a>
      <ul>
        <li><a href="">submenu1</a></li>
        <li><a href="">submenu2</a></li>
        <li><a href="">submenu3</a>
          <ul>
            <li><a href="">sub1</a></li>
            <li><a href="">sub2</a></li>
          </ul>
        </li>
        <li><a href="">submenu4</a></li>
      </ul>
    </li>
    <li><a href="#">menu3</a></li>
    </li>
    <li><a href="#">menu5</a></li>
  </ul>
</nav>

要理解该技巧，请添加一个大的框阴影以注意剪切区域和可见区域，因为阴影也被剪切路径剪切了：

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.nav {
  width: 50%;
}

.nav ul {
  display: flex;
  justify-content: space-between;
  background-color: #000;
}

.nav ul li {
  list-style: none;
  padding: 5px;
  position: relative;
}

.nav ul li a {
  text-decoration: none;
  text-transform: uppercase;
  color: #fff;
  display: block;
}

.nav ul li ul {
  position: absolute;
  top: 100%;
  width: 150px;
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  text-align: center;
  clip-path: 
   polygon(0% 10%, 10% 10%, 10% 0%, 20% 10%, 1000% 10%, 1000% 1000%, 0% 1000%);
  box-shadow: 0 0 0 1000vmax red;
}

.nav ul li ul li ul {
  position: absolute;
  left: 100%;
  top: 0;
  width: 150px;
  text-align: center;
  background-color: green;
}

<nav class="nav">
  <ul>
    <li><a href="#">menu1</a></li>
    <li><a href="#">menu2</a>
      <ul>
        <li><a href="">submenu1</a></li>
        <li><a href="">submenu2</a></li>
        <li><a href="">submenu3</a>
          <ul>
            <li><a href="">sub1</a></li>
            <li><a href="">sub2</a></li>
          </ul>
        </li>
        <li><a href="">submenu4</a></li>
      </ul>
    </li>
    <li><a href="#">menu3</a></li>
    </li>
    <li><a href="#">menu5</a></li>
  </ul>
</nav>

如何在父元素上使用剪切路径时使子菜单可见

1 个答案: