因此,我决定构建一个导航栏,但其中包含一个下拉菜单,因此我这样做了,我不知道如何使箭头保持不断旋转,直到下拉菜单消失为止。请帮忙。
我已经尝试了javascript和其他CSS技巧,但没有想到。如果我最终需要使用javascript来解决问题,那我只是希望它能起作用:)
我希望箭头不断旋转,直到下拉菜单内容消失为止。
* {
margin: 0;
padding: 0;
font-family: Arial, Helvetica, sans-serif;
outline: 0;
}
/* ===== HEADER ===== */
header {
padding: 20px 30px 40px 0;
box-shadow: 0 1px 10px rgba(0, 0, 0, .11);
}
header nav {
float: right;
}
header li {
margin: 0 .5em;
display: inline-block;
}
header a {
font-size: 20px;
text-transform: capitalize;
text-decoration: none;
color: #666666;
transition: .2s;
}
header a:hover {
color: black;
}
header .dropdown-link {
padding-right: 5px;
}
header i {
cursor: pointer;
transition: .35s;
}
header .dropdown-link:hover+i,
header i:hover {
transform: rotate(180deg);
}
header i:hover+.dropdown-content {
display: grid;
}
.dropdown-link {
padding: 20px 0;
}
/* ===== DROPDOWN-CONTENT ===== */
.dropdown-content {
display: none;
position: absolute;
margin: 10px 0 0 0;
padding: 10px 20px;
background-color: white;
/* 0 x and y offset, 10px blur and 5px size */
box-shadow: 0 0 10px 5px rgba(0, 0, 0, .11);
border-radius: 10px;
}
.dropdown-content:hover {
display: grid;
}
.dropdown-link:hover~.dropdown-content {
display: grid;
}
.dropdown-content a {
padding: 5px 0;
}
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" />
<header>
<nav>
<ul>
<li><a href="#">home</a></li>
<li><a href="#">features</a></li>
<li class="dropdown-item">
<a class="dropdown-link" href="#">dropdown</a>
<i class="fa fa-chevron-down"></i>
<div class="dropdown-content">
<a href="#">link 1</a>
<a href="#">link 2</a>
<a href="#">link 3</a>
<a href="#">link 4</a>
<a href="#">link 5</a>
</div>
</li>
<li><a href="#">contact</a></li>
<li><a href="#">about</a></li>
</ul>
</nav>
</header>
最佳答案
问题是,当您将鼠标悬停在<a>
标记(dropdown-link
)上时,图标会更改。您需要将鼠标悬停在li
(dropdown-item
)元素上,因此当显示UL时,从技术上讲您仍将鼠标悬停在li
上。
是重要的代码(也是唯一更新的代码):
header .dropdown-item:hover > i,
header i:hover {
transform: rotate(180deg);
}
* {
margin: 0;
padding: 0;
font-family: Arial, Helvetica, sans-serif;
outline: 0;
}
/* ===== HEADER ===== */
header {
padding: 20px 30px 40px 0;
box-shadow: 0 1px 10px rgba(0, 0, 0, .11);
}
header nav {
float: right;
}
header li {
margin: 0 .5em;
display: inline-block;
}
header a {
font-size: 20px;
text-transform: capitalize;
text-decoration: none;
color: #666666;
transition: .2s;
}
header a:hover {
color: black;
}
header .dropdown-link {
padding-right: 5px;
}
header i {
cursor: pointer;
transition: .35s;
}
header .dropdown-item:hover>i,
header i:hover {
transform: rotate(180deg);
}
header i:hover+.dropdown-content {
display: grid;
}
.dropdown-link {
padding: 20px 0;
}
/* ===== DROPDOWN-CONTENT ===== */
.dropdown-content {
display: none;
position: absolute;
margin: 10px 0 0 0;
padding: 10px 20px;
background-color: white;
/* 0 x and y offset, 10px blur and 5px size */
box-shadow: 0 0 10px 5px rgba(0, 0, 0, .11);
border-radius: 10px;
}
.dropdown-content:hover {
display: grid;
}
.dropdown-link:hover~.dropdown-content {
display: grid;
}
.dropdown-content a {
padding: 5px 0;
}
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" />
<header>
<nav>
<ul>
<li><a href="#">home</a></li>
<li><a href="#">features</a></li>
<li class="dropdown-item">
<a class="dropdown-link" href="#">dropdown</a>
<i class="fa fa-chevron-down"></i>
<div class="dropdown-content">
<a href="#">link 1</a>
<a href="#">link 2</a>
<a href="#">link 3</a>
<a href="#">link 4</a>
<a href="#">link 5</a>
</div>
</li>
<li><a href="#">contact</a></li>
<li><a href="#">about</a></li>
</ul>
</nav>
</header>