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

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 .

 
   Everyting  
 
  Everyting 
 ...... 
 
 

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; }

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); }

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; }

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('top', index * 4).css('width', width - index * 0.5 + '%').css('margin-left', index * 0.25 + '%'); }); li.addClass('closed'); toggler.removeClass('active'); } setClosed();

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

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

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

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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