jQuery and CSS3 folding card drop-down list box to achieve effect-JS Tutorial-php.cn

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jQuery and CSS3 folding card drop-down list box to achieve effect

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Jun 25, 2018 pm 03:16 PM

css3 animation jquery

This is a very cool folding card-style drop-down list box effect made using jQuery and CSS3. Interested friends can refer to the

jQuery drop-down list box effect to separate each list The items are all made in the style of a card. Opening and closing it has the feeling of opening and closing blinds. The effect is very good, I would like to share it with everyone.

##Brief Tutorial
HTML structure
The list items of this drop-down list box effect are made using an unordered list, and the element used to switch the open and closed states is a hyperlink element .

<p class="container">
 <p class="card-drop">
  <a class=&#39;toggle&#39; href="#">
   <i class=&#39;fa fa-suitcase&#39;></i> 
   <span class=&#39;label-active&#39;>Everyting</span>
  </a>
  <ul>
   <li class=&#39;active&#39;>
    <a data-label="Everyting" href="#"><i class=&#39;fa fa-suitcase&#39;></i> Everyting</a>
   </li>
   ......
  </ul>
 </p>
</p>

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CSS stylea.toggle element is used to toggle the opening of the drop-down list and closed status. In order to create the effect of flipping the card up when clicked, it is set with the transform-style: preserve-3d; attribute. At the same time, the origin of the transformation transform-origin: 50% 0%; is modified.

.card-drop > a.toggle {
 position: relative;
 z-index: 100;
 -moz-backface-visibility: hidden;
 -webkit-backface-visibility: hidden;
 backface-visibility: hidden;
 -moz-transform-style: preserve-3d;
 -webkit-transform-style: preserve-3d;
 transform-style: preserve-3d;
 -moz-transform-origin: 50% 0%;
 -ms-transform-origin: 50% 0%;
 -webkit-transform-origin: 50% 0%;
 transform-origin: 50% 0%;
 -moz-transition: linear 0.1s;
 -o-transition: linear 0.1s;
 -webkit-transition: linear 0.1s;
 transition: linear 0.1s;
}

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But when it is activated, it will rotate along the X-axis and be made using :before and :after pseudo-elements

Corner triangle effect.

.card-drop > a.toggle:active {
 -moz-transform: rotateX(60deg);
 -webkit-transform: rotateX(60deg);
 transform: rotateX(60deg);
}
.card-drop > a.toggle:active:after {
 -moz-transform: rotateX(180deg);
 -webkit-transform: rotateX(180deg);
 transform: rotateX(180deg);
}
.card-drop > a.toggle:before, .card-drop > a.toggle:after {
 content: "";
 position: absolute;
}
.card-drop > a.toggle:before {
 right: 25px;
 top: 50%;
 margin-top: -2.5px;
 border-left: 6px solid transparent;
 border-right: 6px solid transparent;
 border-top: 6px solid rgba(0, 0, 0, 0.8);
}
.card-drop > a.toggle.active:before {
 transform: rotate(180deg);
}

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When switching list items, simply use jQuery to modify their top, width and margin-left properties to show and hide them. . And use ease-out as CSS animation transition effect.

.card-drop ul {
 position: absolute;
 height: 100%;
 top: 0;
 display: block;
 width: 100%;
}
.card-drop ul li {
 margin: 0 auto;
 -moz-transition: all, ease-out 0.3s;
 -o-transition: all, ease-out 0.3s;
 -webkit-transition: all, ease-out 0.3s;
 transition: all, ease-out 0.3s;
 position: absolute;
 top: 0;
 z-index: 0;
 width: 100%;
}
.card-drop ul li a {
 border-top: none;
}
.card-drop ul li a:hover {
 background-color: #4aa3df;
 color: #f3f9fd;
}
.card-drop ul li.active a {
 color: #fff;
 background-color: #258cd1;
 cursor: default;
}
.card-drop ul li.closed a:hover {
 cursor: default;
 background-color: #3498db;
}

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JavaScript

In jQuery code, setClosed() function Used to close all list items. They are closed by default.

function setClosed() {
  li.each(function (index) {
    $(this).css(&#39;top&#39;, index * 4).css(&#39;width&#39;, width - index * 0.5 + &#39;%&#39;).css(&#39;margin-left&#39;, index * 0.25 + &#39;%&#39;);
  });
  li.addClass(&#39;closed&#39;);
  toggler.removeClass(&#39;active&#39;);
}
setClosed();

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Then listen to the mousedown event of the .toggle element, which switches the open and closed state of the list.

toggler.on(&#39;mousedown&#39;, function () {
  var $this = $(this);
  if ($this.is(&#39;.active&#39;)) {
    setClosed();
  } else {
    $this.addClass(&#39;active&#39;);
    li.removeClass(&#39;closed&#39;);
    li.each(function (index) {
      $(this).css(&#39;top&#39;, 60 * (index + 1)).css(&#39;width&#39;, &#39;100%&#39;).css(&#39;margin-left&#39;, &#39;0px&#39;);
    });
  }
});

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Finally, when each list item is clicked, the content of the list item is moved to the first item and is closed entirely. list.

links.on(&#39;click&#39;, function (e) {
  var $this = $(this), label = $this.data(&#39;label&#39;);
  icon = $this.children(&#39;i&#39;).attr(&#39;class&#39;);
  li.removeClass(&#39;active&#39;);
  if ($this.parent(&#39;li&#39;).is(&#39;active&#39;)) {
    $this.parent(&#39;li&#39;).removeClass(&#39;active&#39;);
  } else {
    $this.parent(&#39;li&#39;).addClass(&#39;active&#39;);
  }
  toggler.children(&#39;span&#39;).text(label);
  toggler.children(&#39;i&#39;).removeClass().addClass(icon);
  setClosed();
  e.preventDefault;
});

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The above is the entire content of this article. I hope it will be helpful to everyone’s study. For more related content, please pay attention to the PHP Chinese website!

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The above is the detailed content of jQuery and CSS3 folding card drop-down list box to achieve effect. For more information, please follow other related articles on the PHP Chinese website!

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