一款基于css3和jquery实现的动画显示弹出层按钮教程

　　今天给大家分享一款基于css3和jquery实现的动画弹出层。这款弹出层初页面面一个显示弹出层按钮。单击该按钮时，弹出层以非常炫的动画形式出现。弹出层有关闭按钮，单击半闭按钮，弹出层关闭。效果图如下：

　　实现的代码。

　　html代码：

1. <div class="papersheet">  
2.         <!-- Action Trigger -->  
3.         <div class="papersheet__trigger">  
4.             <!-- Icon -->  
5.             <svg class="papersheet__trigger-icon" viewbox="0 0 24 24"><g transform="scale(0.023 0.023)"><path d="M1014.662 822.66c-0.004-0.004-0.008-0.008-0.012-0.010l-310.644-310.65 310.644-310.65c0.004-0.004 0.008-0.006 0.012-0.010 3.344-3.346 5.762-7.254 7.312-11.416 4.246-11.376 1.824-24.682-7.324-33.83l-146.746-146.746c-9.148-9.146-22.45-11.566-33.828-7.32-4.16 1.55-8.070 3.968-11.418 7.31 0 0.004-0.004 0.006-0.008 0.010l-310.648 310.652-310.648-310.65c-0.004-0.004-0.006-0.006-0.010-0.010-3.346-3.342-7.254-5.76-11.414-7.31-11.38-4.248-24.682-1.826-33.83 7.32l-146.748 146.748c-9.148 9.148-11.568 22.452-7.322 33.828 1.552 4.16 3.97 8.072 7.312 11.416 0.004 0.002 0.006 0.006 0.010 0.010l310.65 310.648-310.65 310.652c-0.002 0.004-0.006 0.006-0.008 0.010-3.342 3.346-5.76 7.254-7.314 11.414-4.248 11.376-1.826 24.682 7.322 33.83l146.748 146.746c9.15 9.148 22.452 11.568 33.83 7.322 4.16-1.552 8.070-3.97 11.416-7.312 0.002-0.004 0.006-0.006 0.010-0.010l310.648-310.65 310.648 310.65c0.004 0.002 0.008 0.006 0.012 0.008 3.348 3.344 7.254 5.762 11.414 7.314 11.378 4.246 24.684 1.826 33.828-7.322l146.746-146.748c9.148-9.148 11.57-22.454 7.324-33.83-1.552-4.16-3.97-8.068-7.314-11.414z"></path></g></svg>  
6.         </div>  
7.         <!-- Face 1 -->  
8.         <div class="papersheet__face-item animated fadeInUp">  
9.             <img src="128.jpg" alt="" />  
10.         </div>  
11.         <!-- Face 2 -->  
12.         <div class="papersheet__face-item animated fadeInUp">  
13.             <img src="129.jpg" alt="" />  
14.         </div>  
15.         <!-- Face 2 -->  
16.         <div class="papersheet__face-item animated fadeInUp">  
17.             <img src="130.jpg" alt="" />  
18.