将鼠标悬停在另一个图标中以触发动画效果

Question

当我悬停div时，我需要在图标中设置CSS动画效果。

CSS

.animated-div {
    -webkit-animation-name: flipInX;
    animation-name: flipInX;
    -webkit-animation-duration:1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}
.newsline:hover .animated-div, .newsline:focus .animated-div, .newsline:active .animated-div {
    -webkit-animation-name: flipInX;
    animation-name: flipInX;
    -webkit-animation-duration:1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}

HTML

<div class="box-head">
    <i class="fa fa-reorder fa-2x pull-left fa-border animated-div"></i>
</div>
</br></br></br>
<div class="newsline">test</div>

在行动中这不起作用！

我该如何解决？

DEMO

Answer 1

CSS中没有先前的兄弟选择器，因此在不更改标记的情况下单独使用纯CSS无法实现所需的效果。

CSS方法：

如果您可以将标记更改为以下内容（基本上将div移到图标容器上方）：

<div class="newsline">test</div>
<div class="box-head">
    <i class="fa fa-reorder fa-2x pull-left fa-border animated-div"></i>
</div>

然后您可以使用以下CSS在悬停div时触发动画。

.newsline:hover + .box-head > .animated-div {
    -webkit-animation-name: flipInX;
    animation-name: flipInX;
    -webkit-animation-duration:1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}

@-webkit-keyframes flipInX {
  0% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
    opacity: 0
  }
  40% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in
  }
  60% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    opacity: 1
  }
  80% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -5deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -5deg)
  }
  100% {
    -webkit-transform: perspective(400px);
    transform: perspective(400px)
  }
}
@keyframes flipInX {
  0% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
    opacity: 0
  }
  40% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in
  }
  60% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    opacity: 1
  }
  80% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -5deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -5deg)
  }
  100% {
    -webkit-transform: perspective(400px);
    transform: perspective(400px)
  }
}
.flipInX {
  -webkit-backface-visibility: visible!important;
  backface-visibility: visible!important;
  -webkit-animation-name: flipInX;
  animation-name: flipInX
}
@-webkit-keyframes flipInY {
  0% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
    transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
    opacity: 0
  }
  40% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
    transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in
  }
  60% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
    transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
    opacity: 1
  }
  80% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -5deg);
    transform: perspective(400px) rotate3d(0, 1, 0, -5deg)
  }
  100% {
    -webkit-transform: perspective(400px);
    transform: perspective(400px)
  }
}
@keyframes flipInY {
  0% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
    transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
    opacity: 0
  }
  40% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
    transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in
  }
  60% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
    transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
    opacity: 1
  }
  80% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -5deg);
    transform: perspective(400px) rotate3d(0, 1, 0, -5deg)
  }
  100% {
    -webkit-transform: perspective(400px);
    transform: perspective(400px)
  }
}
/* add this class */

.newsline:hover + .box-head > .animated-div {
  -webkit-animation-name: flipInX;
  animation-name: flipInX;
  -webkit-animation-duration: 1s;
  animation-duration: 1s;
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
}

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css" rel="stylesheet" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<div class="newsline">test</div>
<div class="box-head">
  <i class="fa fa-reorder fa-2x pull-left fa-border animated-div"></i>
</div>

选择说明：

.newsline:hover + .box-head > .animated-div

• 选择class='animated-div'
元素
• 是class='box-head'
的另一个元素的子元素
• ，它是class='animated-div'
元素的相邻兄弟
• 当悬挂class = 'animated-div'的元素时。

jQuery方法：

如果由于某种原因无法修改您的结构，那么您需要创建一个单独的onhover类，如下所示：

.onhover {
    -webkit-animation-name: flipInX;
    animation-name: flipInX;
    -webkit-animation-duration:1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}

并使用jQuery（或JavaScript）将代码添加到.animated-div，同时将鼠标悬停在.newsline上。

$(document).ready(function(){
    $('.newsline').hover(function(){
        $(this).prev('.box-head').children('.animated-div').addClass('onhover');
    }, function(){
        $(this).prev('.box-head').children('.animated-div').removeClass('onhover');
    });
});

$(document).ready(function(){
    $('.newsline').hover(function(){
        $(this).prev('.box-head').children('.animated-div').addClass('onhover');
    }, function(){
        $(this).prev('.box-head').children('.animated-div').removeClass('onhover');
    });
});

@-webkit-keyframes flipInX {
  0% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
    opacity: 0
  }
  40% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in
  }
  60% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    opacity: 1
  }
  80% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -5deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -5deg)
  }
  100% {
    -webkit-transform: perspective(400px);
    transform: perspective(400px)
  }
}
@keyframes flipInX {
  0% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
    opacity: 0
  }
  40% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in
  }
  60% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    opacity: 1
  }
  80% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -5deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -5deg)
  }
  100% {
    -webkit-transform: perspective(400px);
    transform: perspective(400px)
  }
}
.flipInX {
  -webkit-backface-visibility: visible!important;
  backface-visibility: visible!important;
  -webkit-animation-name: flipInX;
  animation-name: flipInX
}
@-webkit-keyframes flipInY {
  0% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
    transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
    opacity: 0
  }
  40% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
    transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in
  }
  60% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
    transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
    opacity: 1
  }
  80% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -5deg);
    transform: perspective(400px) rotate3d(0, 1, 0, -5deg)
  }
  100% {
    -webkit-transform: perspective(400px);
    transform: perspective(400px)
  }
}
@keyframes flipInY {
  0% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
    transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
    opacity: 0
  }
  40% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
    transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in
  }
  60% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
    transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
    opacity: 1
  }
  80% {
    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -5deg);
    transform: perspective(400px) rotate3d(0, 1, 0, -5deg)
  }
  100% {
    -webkit-transform: perspective(400px);
    transform: perspective(400px)
  }
}
/* add this class */

.onhover {
  -webkit-animation-name: flipInX;
  animation-name: flipInX;
  -webkit-animation-duration: 1s;
  animation-duration: 1s;
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
}

.box-head{
  clear: both;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css" rel="stylesheet" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />

<div class="box-head">
  <i class="fa fa-reorder fa-2x pull-left fa-border animated-div"></i>
</div>
<div class="newsline">test</div>
<br>

<div class="box-head">
  <i class="fa fa-reorder fa-2x pull-left fa-border animated-div"></i>
</div>
<div class="newsline">test2</div>
<br>

<div class="box-head">
  <i class="fa fa-reorder fa-2x pull-left fa-border animated-div"></i>
</div>
<div class="newsline">test3</div>

选择说明：

$(this).prev('.box-head').children('.animated-div')

• 选择class='animated-div'
元素
• 是class='box-head'
元素的子元素
• 反过来是正在悬停的元素的前一个兄弟（即带有class='newsline'的元素）

如果你在之间有任何额外的元素<{1}}和图标的容器（带class='newsline'），则使用下面的jQuery选择器。< / p>

class='box-head'

我已将$(this).prevAll('.box-head:first').children('.animated-div') 作为CSS和jQuery方法的示例，但同样可以应用于其他伪选择器，例如hover，active。