html - 下拉 - 悬停时子菜单菜单消失

Question

除了悬停时的子菜单外，一切都很好……它在悬停时消失了。我确定悬停有一些问题。即

.dropdown-content a:hover + .dropdown-submenu {
   display: block;
}

.icon-cadet-left {
  float: right;
}
.dropbtn {
  overflow: hidden;
  width: 300px;
  background-color: #338d99;
  color: white;
  padding: 16px;
  font-family: 'Play';
  font-size: 20px;
  border: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.dropdown {
  position: relative;
  display: block;

}
.dropdown-content {
  display: none;
    position: absolute;
  background-color: #e0e0e0;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  margin:0px; 
}
.dropdown-content a {
  width: 300px;
  color: black;
  font-family: 'Play';
  letter-spacing: 2px;
  padding: 12px 16px;
  text-decoration: none !important;
  display: block;
  text-align: center;
  border-bottom: 0.1em solid #333;
  border-radius: 5%;
  text-transform: uppercase;
  
}
.dropdown-submenu {
  display: none;
  margin:0px;
  background-color: #e0e0e0;
  position: absolute;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  left: 100%;
  top: 0px;
 }

.dropdown-submenu a {
  width: 300px;
  color: black;
  font-family: 'Play';
  letter-spacing: 2px;
  padding: 12px 16px;
  text-decoration: none !important;
  display: block;
  text-align: center;
  border-bottom: 0.1em solid #333;
  border-radius: 5%;
  text-transform: uppercase;

}

.dropdown-content a:hover {
  background-color: #f1f1f1;
  color:#909090;
}
.dropdown-submenu a:hover {
  background-color: #f1f1f1
}
.dropdown:hover .dropdown-content {
  display: block;
}
 .dropdown-content a:hover + .dropdown-submenu {
  display: block;
}
.dropdown:hover .dropbtn {
  background-color: #29727c;
}

<div class="pricing-button">
          <div class="dropdown">
            <button class="dropbtn">Logo Design</button>
                <div class="dropdown-content animated bounce">
                  <a href="#">Logo & Identity<i class="fa fa-caret-right icon-cadet-left"></i></a>
                      <div class="dropdown-submenu">
                        <a href="#">Logo Design</a>
                        <a href="#">Business Cards</a>
                        <a href="#">Sationary</a>
                        <a href="#">Holiday Doodles</a>
                      </div>
                  <a href="#">Business & Advertising<i class="fa fa-caret-right icon-cadet-left"></i></a>
                      <div class="dropdown-submenu">
                        <a>Sample 01</a>
                        <a>Sample 02</a>
                        <a>Sample 03</a>
                        <a>Sample 04</a>
                      </div>
                  <a href="#">Website & Digitals<i class="fa fa-caret-right icon-cadet-left"></i></a>
                      <div class="dropdown-submenu">
                        <a>Option 01</a>
                        <a>Option 02</a>
                        <a>Option 03</a>
                        <a>Option 04</a>
                      </div>
                  <a href="#">Textile Designing<i class="fa fa-caret-right icon-cadet-left"></i></a>
                      <div class="dropdown-submenu">
                        <a>Sample 01</a>
                        <a>Sample 02</a>
                        <a>Sample 03</a>
                        <a>Sample 04</a>
                      </div>
                </div>
          </div>
        </div>

Answer 1

你应该使用

.dropdown-content:hover .dropdown-submenu {

代替

.dropdown-content a:hover + .dropdown-submenu {

原因是一旦您将鼠标悬停在 .dropdown-submenu 上，a 节点就不再悬停了，所以 .dropdown-子菜单 未被阻止。

这是一个工作版本:

.icon-cadet-left {
  float: right;
}
.dropbtn {
  overflow: hidden;
  width: 300px;
  background-color: #338d99;
  color: white;
  padding: 16px;
  font-family: 'Play';
  font-size: 20px;
  border: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.dropdown {
  position: relative;
  display: block;

}
.dropdown-content {
  display: none;
    position: absolute;
  background-color: #e0e0e0;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  margin:0px; 
}
.dropdown-content a {
  width: 300px;
  color: black;
  font-family: 'Play';
  letter-spacing: 2px;
  padding: 12px 16px;
  text-decoration: none !important;
  display: block;
  text-align: center;
  border-bottom: 0.1em solid #333;
  border-radius: 5%;
  text-transform: uppercase;
  
}
.dropdown-submenu {
  display: none;
  margin:0px;
  background-color: #e0e0e0;
  position: absolute;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  left: 100%;
  top: 0px;
 }

.dropdown-submenu a {
  width: 300px;
  color: black;
  font-family: 'Play';
  letter-spacing: 2px;
  padding: 12px 16px;
  text-decoration: none !important;
  display: block;
  text-align: center;
  border-bottom: 0.1em solid #333;
  border-radius: 5%;
  text-transform: uppercase;

}

.dropdown-content a:hover {
  background-color: #f1f1f1;
  color:#909090;
}
.dropdown-submenu a:hover {
  background-color: #f1f1f1
}
.dropdown:hover .dropdown-content {
  display: block;
}
 .dropdown-content:hover .dropdown-submenu {
  display: block;
}
.dropdown:hover .dropbtn {
  background-color: #29727c;
}

<div class="pricing-button">
          <div class="dropdown">
            <button class="dropbtn">Logo Design</button>
                <div class="dropdown-content animated bounce">
                  <a href="#">Logo & Identity<i class="fa fa-caret-right icon-cadet-left"></i></a>
                      <div class="dropdown-submenu">
                        <a href="#">Logo Design</a>
                        <a href="#">Business Cards</a>
                        <a href="#">Sationary</a>
                        <a href="#">Holiday Doodles</a>
                      </div>
                  <a href="#">Business & Advertising<i class="fa fa-caret-right icon-cadet-left"></i></a>
                      <div class="dropdown-submenu">
                        <a>Sample 01</a>
                        <a>Sample 02</a>
                        <a>Sample 03</a>
                        <a>Sample 04</a>
                      </div>
                  <a href="#">Website & Digitals<i class="fa fa-caret-right icon-cadet-left"></i></a>
                      <div class="dropdown-submenu">
                        <a>Option 01</a>
                        <a>Option 02</a>
                        <a>Option 03</a>
                        <a>Option 04</a>
                      </div>
                  <a href="#">Textile Designing<i class="fa fa-caret-right icon-cadet-left"></i></a>
                      <div class="dropdown-submenu">
                        <a>Sample 01</a>
                        <a>Sample 02</a>
                        <a>Sample 03</a>
                        <a>Sample 04</a>
                      </div>
                </div>
          </div>
        </div>