由于一些奇怪的原因，我找不到的答案，这就是为什么这个库在Firefox或Edge中不起作用的原因？！？！我在导航栏选项卡中添加了下划线动画，除了假设变为红色的文本外没有任何反应。
以下是我的index.html文件的代码。
<!DOCTYPE html>
<html lang = "en">
<head>
<title>Klassic</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta charset="UTF-8">
<link rel="stylesheet" href="bootstrap-3.3.7-dist/css/bootstrap.min.css">
<link rel="stylesheet" href="style.css" type ="text/css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<link href="https://fonts.googleapis.com/css?family=Armata" rel="stylesheet">
<link href = "animate.css" rel="stylesheet">
<link href = "hover.css/hover.css" rel="stylesheet" media="all">
<link href = "hover.css/hover-min.css" rel="stylesheet" media="all">
</head>
<body>
<nav class="navbar navbar-default container navbar-centered" role="navigation">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class = "hvr-underline-from-center navbar-button-font"><a href="#">Home</a></li>
<li class = "navbar-button-font hvr-underline-from-center"><a href="#">Schedule</a></li>
<li class = "navbar-button-font hvr-underline-from-center"><a href="#">Teams</a></li>
<li class = "navbar-button-font hvr-underline-from-center"><a href="#">Sponsors</a></li>
<li class = "navbar-button-font hvr-underline-from-center"><a href="#">Results</a></li>
<li class = "navbar-button-font hvr-underline-from-center"><a href="#">Contact</a></li>
</ul>
<script type = "text/javascript">
$(document).on('click','.navbar-collapse.in',function(e) {
if( $(e.target).is('a') && $(e.target).attr('class') != 'dropdown-toggle' ) {
$(this).collapse('hide');
}
});
</script>
<script type = "text/javascript">
$('ul.nav [data-toggle=dropdown').on({
mouseenter: function(event) {
if (!$(this).hasClass("open")) {
$(this).parent().toggleClass('open');
}
}
});
</script>
<script type = "text/javascript">
$('ul.nav .dropdown, .dropdown-submenu').on({
mouseleave: function(event) {
if ($(this).hasClass("open")) {
$(this).toggleClass('open');
}
}
});
</script>
<script type = "text/javascript">
$(document).click(function (event) {
var clickover = $(event.target);
var $navbar = $(".navbar-collapse");
var _opened = $navbar.hasClass("in");
if (_opened === true && !clickover.hasClass("navbartoggle")) {
$navbar.collapse('hide');
}
});
</script>
</nav>
</body>
</html>
下面是我的style.css的代码
.navbar {
margin-top: 30px;
border-color: red;
}
.navbar-toggle {
position: relative;
float: left;
padding: 20px 20px;
margin-top: 8px;
margin-right: -20px;
margin-left: 21px;
margin-bottom: 8px;
background-color: transparent;
background-image: none;
border-color: black;
border-radius: 4px;
text-align: center;
z-index: 3;
}
@media (min-width: 768px) {
.navbar-centered .navbar-nav {
float: none;
text-align: center;
}
.navbar-centered .navbar-nav > li {
float: none;
}
.navbar-centered .nav > li {
display: inline;
padding-bottom: 17px;
padding-top: 19px;
padding-right: 10px;
padding-left: 10px;
}
.navbar-centered .nav > li > a {
display: inline-block;
}
}
/* Makes Navbar activate collapse earlier */
@media (max-width: 768px) {
.navbar-collapse.collapse {
display: none !important;
overflow: hidden;
}
.navbar-collapse.collapse.in {
display: block !important;
}
.navbar-header .collapse, .navbar-toggle {
display:inline; !important;
}
.navbar-header {
float:none;
background-color: transparent;
}
.navbar {
background: transparent;
border-color: transparent
}
.collapse {
background-color: white; !important;
}
.navbar-default .navbar-collapse, .navbar-default .navbar-form {
border-color: white;
}
.navbar-toggle {
margin-top: -19px
}
}
.navbar-button-font {
font-family: 'Armata', sans-serif;
}
.navbar-default .navbar-nav>li>a:hover {
color: red;
}
body {
}
.active {
background-color: transparent;
}
.hvr-underline-from-center {
display: inline-block;
vertical-align: middle;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
-webkit-backface-visibility: hidden;
backface-visibility: hidden;
-moz-osx-font-smoothing: grayscale;
position: relative;
overflow: hidden;
}
.hvr-underline-from-center:before {
content: "";
position: absolute;
z-index: -1;
left: 50%;
right: 50%;
bottom: 0;
background: red;
height: 4px;
-webkit-transition-property: left, right;
transition-property: left, right;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-timing-function: ease-out;
transition-timing-function: ease-out;
}
.hvr-underline-from-center:hover:before, .hvr-underline-from-
center:focus:before, .hvr-underline-from-center:active:before {
left: 0;
right: 0;
}
答案 0 :(得分：0)
请检查您的css源文件路径是否正确。如果每件事都好，请发给我zip我会修复
答案 1 :(得分：0)
而不是CSS中的.hvr-underline-from-center，明确说出li..hvr-underline-from-center。
完整示例：
li.hvr-underline-from-center {
display: inline-block;
vertical-align: middle;
-webkit-transform: translateZ(0);
transform: translateZ(0);
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
-webkit-backface-visibility: hidden;
backface-visibility: hidden;
-moz-osx-font-smoothing: grayscale;
position: relative;
overflow: hidden;
}
li.hvr-underline-from-center:before {
content: "";
position: absolute;
z-index: -1;
left: 50%;
right: 50%;
bottom: 0;
background: red;
height: 4px;
-webkit-transition-property: left, right;
transition-property: left, right;
-webkit-transition-duration: 0.3s;
transition-duration: 0.3s;
-webkit-transition-timing-function; ease-out;
transition-timing-function: ease-out;
}
li.hvr-underline-from-center:hover:before, li.hvr-underline-from-center:focus:before, li.hvr-underline-from-center:active:before {
left: 0;
right: 0;
}
出于某种原因，Firefox要求明确地在CSS中调用元素。这应该适用于edge和Firefox。