css3实现垂直下拉动画菜单示例

前端技术 2023/09/04 CSS




复制代码
代码如下:

<nav>
<ul class=\"mcd-menu\">
<li>
<a href=\"\">
<i class=\"fa fa-home\"></i>
<strong>Home</strong>
<small>sweet home</small>
</a>
</li>
<li>
<a href=\"\" class=\"active\">
<i class=\"fa fa-edit\"></i>
<strong>About us</strong>
<small>sweet home</small>
</a>
</li>
<li>
<a href=\"\">
<i class=\"fa fa-gift\"></i>
<strong>Features</strong>
<small>sweet home</small>
</a>
</li>
<li>
<a href=\"\">
<i class=\"fa fa-globe\"></i>
<strong>News</strong>
<small>sweet home</small>
</a>
</li>
<li>
<a href=\"\">
<i class=\"fa fa-comments-o\"></i>
<strong>Blog</strong>
<small>what they say</small>
</a>
<ul>
<li><a href=\"#\"><i class=\"fa fa-globe\"></i>Mission</a></li>
<li>
<a href=\"#\"><i class=\"fa fa-group\"></i>Our Team</a>
<ul>
<li><a href=\"#\"><i class=\"fa fa-female\"></i>Leyla Sparks</a></li>
<li>
<a href=\"#\"><i class=\"fa fa-male\"></i>Gleb Ismailov</a>
<ul>
<li><a href=\"#\"><i class=\"fa fa-leaf\"></i>About</a></li>
<li><a href=\"#\"><i class=\"fa fa-tasks\"></i>Skills</a></li>
</ul>
</li>
<li><a href=\"#\"><i class=\"fa fa-female\"></i>Viktoria Gibbers</a></li>
</ul>
</li>
<li><a href=\"#\"><i class=\"fa fa-trophy\"></i>Rewards</a></li>
<li><a href=\"#\"><i class=\"fa fa-certificate\"></i>Certificates</a></li>
</ul>
</li>
<li>
<a href=\"\">
<i class=\"fa fa-picture-o\"></i>
<strong>Portfolio</strong>
<small>sweet home</small>
</a>
</li>
<li>
<a href=\"\">
<i class=\"fa fa-envelope-o\"></i>
<strong>Contacts</strong>
<small>drop a line</small>
</a>
</li>
<li class=\"float\">
<a class=\"search\">
<input type=\"text\" value=\"search ...\">
<button><i class=\"fa fa-search\"></i></button>
</a>
<a href=\"\" class=\"search-mobile\">
<i class=\"fa fa-search\"></i>
</a>
</li>
</ul>
</nav>

这里用ul构造了菜单的基本结构。

接下来就利用CSS3代码来实现菜单的下拉和动画效果。

CSS代码比较繁琐，这里我只是提供一些核心的CSS代码，完整的代码大家可以在文章最后下载学习。

这是鼠标滑过菜单项时的动画代码：


复制代码
代码如下:

.mcd-menu li a i, .mcd-menu li a strong, .mcd-menu li a small {
position: relative;

transition: all 300ms linear;
-o-transition: all 300ms linear;
-ms-transition: all 300ms linear;
-moz-transition: all 300ms linear;
-webkit-transition: all 300ms linear;
}
.mcd-menu li:hover > a i {
opacity: 1;
-webkit-animation: moveFromTop 300ms ease-in-out;
-moz-animation: moveFromTop 300ms ease-in-out;
-ms-animation: moveFromTop 300ms ease-in-out;
-o-animation: moveFromTop 300ms ease-in-out;
animation: moveFromTop 300ms ease-in-out;
}
.mcd-menu li:hover a strong {
opacity: 1;
-webkit-animation: moveFromLeft 300ms ease-in-out;
-moz-animation: moveFromLeft 300ms ease-in-out;
-ms-animation: moveFromLeft 300ms ease-in-out;
-o-animation: moveFromLeft 300ms ease-in-out;
animation: moveFromLeft 300ms ease-in-out;
}
.mcd-menu li:hover a small {
opacity: 1;
-webkit-animation: moveFromRight 300ms ease-in-out;
-moz-animation: moveFromRight 300ms ease-in-out;
-ms-animation: moveFromRight 300ms ease-in-out;
-o-animation: moveFromRight 300ms ease-in-out;
animation: moveFromRight 300ms ease-in-out;
}</p> <p>.mcd-menu li:hover > a {
color: #e67e22;
}

以下定义了鼠标滑过后文字图标滑过的动画，分别是从顶部划入，从左侧划入，从右侧划入：


复制代码
代码如下:

@-webkit-keyframes moveFromTop {
from {
opacity: 0;
-webkit-transform: translateY(200%);
-moz-transform: translateY(200%);
-ms-transform: translateY(200%);
-o-transform: translateY(200%);
transform: translateY(200%);
}
to {
opacity: 1;
-webkit-transform: translateY(0%);
-moz-transform: translateY(0%);
-ms-transform: translateY(0%);
-o-transform: translateY(0%);
transform: translateY(0%);
}
}
@-webkit-keyframes moveFromLeft {
from {
opacity: 0;
-webkit-transform: translateX(200%);
-moz-transform: translateX(200%);
-ms-transform: translateX(200%);
-o-transform: translateX(200%);
transform: translateX(200%);
}
to {
opacity: 1;
-webkit-transform: translateX(0%);
-moz-transform: translateX(0%);
-ms-transform: translateX(0%);
-o-transform: translateX(0%);
transform: translateX(0%);
}
}
@-webkit-keyframes moveFromRight {
from {
opacity: 0;
-webkit-transform: translateX(-200%);
-moz-transform: translateX(-200%);
-ms-transform: translateX(-200%);
-o-transform: translateX(-200%);
transform: translateX(-200%);
}
to {
opacity: 1;
-webkit-transform: translateX(0%);
-moz-transform: translateX(0%);
-ms-transform: translateX(0%);
-o-transform: translateX(0%);
transform: translateX(0%);
}
}

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