这篇文章主要讲解了“用css3实现的动画加载导航”，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习“用css3实现的动画加载导航”吧！
今天为给大家再带来一款纯css3实现的动画加载导航。该导航出现的时候以动画的形式出现。效果图如下：
html代码：
代码如下:
<ul class="main-menu">
<li class="main-menu-item active"><a href="#">Home</a></li><li class="main-menu-item">
<a href="#">About Us</a></li><li class="main-menu-item"><a href="#">Another Link</a></li><li
class="main-menu-item"><a href="#">And another</a></li><li class="main-menu-item"><a
href="#">Stuff</a></li><li class="main-menu-item"><a href="#">Help</a></li><li class="main-menu-item">
<a href="#">Contact</a></li></ul>
css代码：
代码如下:
*, *:after, *:before {
-moz-box-sizing: border-box;
box-sizing: border-box;
margin: 0;
padding: 0;
}
html, body {
background: #f0f0f0;
font-family: Helvetica, sans-serif;
height: 100%;
}
.main-menu {
margin: auto;
width: 960px;
text-align: center;
position: relative;
list-style-type: none;
margin-top: 2em;
}
.main-menu::after,
.main-menu-item.active::after {
content: '';
display: inline-block;
position: absolute;
}
.main-menu::after {
width: 70%;
height: 2px;
background: #9B1C27;
-webkit-animation: menuLine 1s ease forwards;
animation: menuLine 1s ease forwards;
-webkit-transform: scaleX(0);
-ms-transform: scaleX(0);
transform: scaleX(0);
bottom: 0;
left: 0;
right: 0;
margin: auto;
opacity: 0;
}
@-webkit-keyframes menuLine {
to {
-webkit-transform: scaleX(1);
transform: scaleX(1);
opacity: 1;
}
}
@keyframes menuLine {
to {
-webkit-transform: scaleX(1);
transform: scaleX(1);
opacity: 1;
}
}
@-webkit-keyframes menuItem {
to {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
@keyframes menuItem {
to {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
.main-menu-item a {
display: block;
padding: 1em;
text-decoration: none;
color: #555;
opacity: 0;
-webkit-transform: translateY(40%);
-ms-transform: translateY(40%);
transform: translateY(40%);
-webkit-animation: menuItem .8s ease forwards;
animation: menuItem .8s ease forwards;
-webkit-transition: all .2s ease;
transition: all .2s ease;
}
.main-menu-item:nth-child(4) a {
-webkit-animation-delay: .4s;
animation-delay: .4s;
}
.main-menu-item:nth-child(3) a, .main-menu-item:nth-child(5) a {
-webkit-animation-delay: .5s;
animation-delay: .5s;
}
.main-menu-item:nth-child(2) a, .main-menu-item:nth-child(6) a {
-webkit-animation-delay: .6s;
animation-delay: .6s;
}
.main-menu-item:nth-child(1) a, .main-menu-item:nth-child(7) a {
-webkit-animation-delay: .7s;
animation-delay: .7s;
}
.main-menu-item {
display: inline-block;
position: relative;
}
.main-menu-item:hover a, .main-menu-item.active {
color: #9B1C27;
}
.main-menu-item:hover a::after, .main-menu-item.active::after {
width: 0;
height: 0;
border-bottom: .5em solid #9B1C27;
border-left: .5em solid transparent;
border-right: .5em solid transparent;
bottom: 0;
left: 0;
right: 0;
margin: auto;
opacity: 0;
-webkit-transform: translateY(0.05em);
-ms-transform: translateY(0.05em);
transform: translateY(0.05em);
-webkit-animation: menuItem .8s 1.2s ease forwards;
animation: menuItem .8s 1.2s ease forwards;
}
感谢各位的阅读，以上就是“用css3实现的动画加载导航”的内容了，经过本文的学习后，相信大家对用css3实现的动画加载导航这一问题有了更深刻的体会，具体使用情况还需要大家实践验证。这里是编程网，小编将为大家推送更多相关知识点的文章，欢迎关注！
