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css3中怎么實現一個垂直下拉動畫菜單,相信很多沒有經驗的人對此束手無策,為此本文總結了問題出現的原因和解決方法,通過這篇文章希望你能解決這個問題。
<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>
這里用ul構造了菜單的基本結構。
接下來就利用CSS3代碼來實現菜單的下拉和動畫效果。
CSS代碼比較繁瑣,這里我只是提供一些核心的CSS代碼,完整的代碼大家可以在文章最后下載學習。
這是鼠標滑過菜單項時的動畫代碼:
代碼如下:
.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;
}
以下定義了鼠標滑過后文字圖標滑過的動畫,分別是從頂部劃入,從左側劃入,從右側劃入:
代碼如下:
@-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%);
}
}
看完上述內容,你們掌握css3中怎么實現一個垂直下拉動畫菜單的方法了嗎?如果還想學到更多技能或想了解更多相關內容,歡迎關注億速云行業資訊頻道,感謝各位的閱讀!
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