从下到上的动画边框颜色变化?
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因此,我一直在寻找一种方法来更改导航栏链接底部边框的颜色,并使用从底部向上开始的线性动画。我能够找到一个带有一些我半明白的代码的线程,只有几行CSS行向正确的方向发送了我,但是颜色的变化是自上而下的,而我希望相反。
我正在使用Bootstrap,如果有什么不同,我有什么办法可以做相反的事情,并使过渡过程从底部开始并向上?我的代码发布在下面...
* {
box-sizing: border-box;
}
body {}
#header-nav {
background-color: #262626;
font-family: 'Kanit', sans-serif;
font-size: 1.1em;
text-transform: uppercase;
border-bottom: #212121 thick solid;
}
#header-nav .container {
padding-top: 10px;
padding-bottom: 10px;
/* border-bottom: purple thick solid;*/
margin: 0px;
}
/*212121*/
#header-nav a {
color: #FFF;
margin-right: 2rem;
padding: 10px;
/* border-bottom: purple thick solid; */
transition-property: all;
transition-duration: 0.5s;
transition-timing-function: cubic-bezier(0, 1, 0.5, 1);
}
#header-nav a:hover {
text-decoration: none;
/* background-color: purple;*/
border-bottom: white thick solid;
}
<!DOCTYPE html>
<html>
<head>
<!-- Meta & Other -->
<title>Infamous | Home</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="description" content="Infamous official website">
<meta name="keywords" content ="Infamous, Minecraft, Server, Game, Gaming">
<meta name="author" content="MrWardy">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">
<link rel="stylesheet" href="./Stylesheets/default.css">
<!-- Fonts -->
<script src="https://kit.fontawesome.com/35fad75205.js" crossorigin="anonymous"></script>
<link href="https://fonts.googleapis.com/css2?family=Kanit&display=swap" rel="stylesheet">
</head>
<body>
<header>
<nav id="header-nav" class="navbar-nav ml-auto">
<div class="container">
<a class="active" href="#"><i class="fas fa-home"></i> Home</a>
<a href="#about"><i class="fas fa-question"></i> About</a>
<a href="#rules"><i class="fas fa-book"></i> Rules</a>
<a href="#vote"><i class="fas fa-vote-yea"></i> Vote</a>
<a href="#store"><i class="fas fa-tags"></i> Store</a>
</div>
</nav>
</header>
<!-- JavsScript -->
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>
</body>
</html>
答案
为此使用渐变:
.box {
background:#000;
padding:10px 20px;
}
a {
display:inline-block;
color:#fff;
font-size:30px;
text-decoration:none;
padding-bottom:10px; /* control the space for the gradient */
background:
linear-gradient(currentColor,currentColor)
bottom /* make it bottom */
/100% 0px /*start at heght = 0; */
no-repeat;
transition:0.3s all;
}
a:hover {
background-size:100% 6px; /* make the height 6px*/
}
<div class="box">
<a href=""> a link </a>
</div>
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