Animated Arc Popup Menu with jQuery and CSS3 Transitions

Animated Arc Popup Menu with jQuery and CSS3 Transitions
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License: MIT
   

A jQuery, Html5, CSS3 based menu widget that popups an Arc (circle) menu around the toggle button, animated with CSS3 transitions.

How to use it:

1. Create a navigation menu using Html unordered list. Use Html5 data-* attributes to specify the toggle text.

<ul id="navs" data-open="close" data-close="open">
  <li><a href="#">menu</a></li>
  <li><a href="#">menu</a></li>
  <li><a href="#">menu</a></li>
  <li><a href="#">menu</a></li>
  <li><a href="#">menu</a></li>
</ul>

2. The basic CSS/CSS3 rules to style the Arc menu.

#navs {
  position: fixed;
  left: 4px;
  bottom: 4px;
  width: 40px;
  height: 40px;
  line-height: 40px;
  list-style-type: none;
  margin: 0;
  padding: 0;
  text-align: center;
  color: #fff;
  cursor: pointer;
}

#navs>li,
#navs:after {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  -webkit-border-radius: 50%;
  background-color: #4ECDC4;
}

#navs>li {
  transition: all .6s;
  -webkit-transition: all .6s;
  -moz-transition: .6s;
}

#navs:after {
  content: attr(data-close);
  z-index: 1;
  border-radius: 50%;
  -webkit-border-radius: 50%;
}

#navs.active:after { content: attr(data-open); }

#navs a {
  width: 40px;
  height: 40px;
  display: inline-block;
  border-radius: 50%;
  -webkit-border-radius: 50%;
  text-decoration: none;
  color: #fff;
  font-size: 0.8em;
}

3. Include the latest version of jQuery JavaScript library at the bottom of the web page.

<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

4. Enable the Arc menu with a little jQuery script.

(function(){
  var ul=$("#navs"),li=$("#navs li"),i=li.length,n=i-1,r=120;
  ul.click(function(){
    $(this).toggleClass('active');
    if($(this).hasClass('active')){
      for(var a=0;a<i;a++){
        li.eq(a).css({
          'transition-delay':""+(50*a)+"ms",
          '-webkit-transition-delay':""+(50*a)+"ms",
          'left':(r*Math.cos(90/n*a*(Math.PI/180))),
          'top':(-r*Math.sin(90/n*a*(Math.PI/180)))  
        });
      }
    }else{
      li.removeAttr('style');
    }
  });
})($);

This awesome jQuery plugin is developed by wuliangchen. For more Advanced Usages, please check the demo page or visit the official website.