jQuery and CSS3 stunning hamburger deformation animation effects-CSS Tutorial-php.cn

jQuery and CSS3 stunning hamburger deformation animation effects

黄舟

Release： 2017-01-18 14:04:21

Original

1578 people have browsed it

Brief Tutorial

This is a cool hamburger deformation animation special effect made using jQuery and CSS3. This special effect attaches button events through jQuery and creates animation effects through CSS3 transform and animation.

How to use

HTML structure

The HTML structure of the hamburger deformation animation effect is as follows:

<div class=&#39;container&#39;>
  <div class=&#39;burger&#39;>
    <div class=&#39;burger__line-top&#39;></div>
    <div class=&#39;burger__line-mid&#39;></div>
    <div class=&#39;burger__menu&#39;>
      <p>MENU</p>
    </div>
  </div>
</div>

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CSS style

Hamburger menu button The basic style is as follows:

.burger {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  width: 71px;
  height: 71px;
  cursor: pointer;
}
.burger__line-top {
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background-color: #fff;
  box-shadow: 0 0 1px 0 #fff;
}
.burger__line-mid {
  margin-top: 17px;
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background-color: #fff;
  box-shadow: 0 0 1px 0 #fff;
}
.burger__menu {
  margin-top: 10px;
}
.burger__menu p {
  text-align: center;
  font-size: 20px;
  font-family: &#39;Open Sans&#39;, sans-serif;
  font-weight: 900;
  color: #fff;
  text-shadow: 0 0 1px #fff;
  letter-spacing: 3px;
}

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Six animations are used in the style: activeTop, activeMid, activeMenu, reverseTop, reverseMid and reverseMenu. Used respectively to deform and return to the initial state of the hamburger button.

JavaScript

This special effect uses jQuery code to add and remove corresponding classes for corresponding elements, and bind mouse click events to the hamburger button.

&#39;use strict&#39;;
$(document).ready(function () {
  var $burger = $(&#39;.burger&#39;),
      $topLine = $(&#39;.burger__line-top&#39;),
      $midLine = $(&#39;.burger__line-mid&#39;),
      $menuLine = $(&#39;.burger__menu&#39;),
      anim = false;
 
  var changeClasses = {
    addActive: function addActive() {
      for (var i = 0; i <= 2; i++) {
        $burger.children().eq(i).removeClass(&#39;reverseLine&#39; + (i + 1)).addClass(&#39;activeLine&#39; + (i + 1));
      }
    },
    addReverse: function addReverse() {
      for (var i = 0; i <= 2; i++) {
        $burger.children().eq(i).removeClass(&#39;activeLine&#39; + (i + 1)).addClass(&#39;reverseLine&#39; + (i + 1));
      }
    }
  };
 
  var timeouts = {
    initial: function initial(child, Y, rot, scale) {
      $burger.children().eq(child).css(&#39;transform&#39;, &#39;translateY(&#39; + Y + &#39;px) rotate(&#39; + rot + &#39;deg) scale(&#39; + scale + &#39;,1)&#39;);
    },
    afterActive: function afterActive() {
      var _this = this;
 
      // ES6
      setTimeout(function () {
        _this.initial(0, 12, 45, 1.40);
        _this.initial(1, -12, -45, 1.40);
        _this.initial(2, 35, 0, 1);
        $burger.children().eq(2).css(&#39;opacity&#39;, &#39;0&#39;);
        anim = true;
      }, 1300);
    },
    beforeReverse: function beforeReverse() {
      var _this2 = this;
 
      setTimeout(function () {
        for (var i = 0; i <= 2; i++) {
          _this2.initial(i, 0, 0, 1);
        }
        $burger.children().eq(2).css(&#39;opacity&#39;, &#39;1&#39;);
        anim = false;
      }, 1300);
    }
  };
 
  $burger.on(&#39;click&#39;, function () {
    if (!anim) {
      changeClasses.addActive();
      timeouts.afterActive();
    } else if (anim) {
      changeClasses.addReverse();
      timeouts.beforeReverse();
    }
  });
});

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