<!-- jquery实现动态点赞特效 --> <!DOCTYPE html> <html lang="en" dir="ltr"> <head> <meta charset="utf-8"> <title></title> <style> .container{ border:1px solid black; padding:100px; } .item{ position:relative; width:40px; } </style> </head> <body> <div class="container"> <div class="item"> <span id="s1">赞</span> </div> </div> <script src="jquery-1.12.4.js"></script> <script> $('#s1').click(function(){ addFavour(this); }); function addFavour(self){ var fontsize = 15; var top = 0; var right = 0; var opacity = 1; var span = document.createElement('span'); $(span).text('+1'); $(self).parent().append(span); $(span).css('color', 'green'); $(span).css('position', 'absolute'); $(span).css('top', top+'px'); $(span).css('right', right+'px'); $(span).css('fontSize', fontsize+'px'); $(span).css('opacity', opacity); //设置定时器，不断更改字体大小，位置，透明度 var obj = setInterval(function(){ fontsize += 5 top -= 5; right -= 5; opacity -= 0.3 $(span).css('position', 'absolute'); $(span).css('top', top+'px'); $(span).css('right', right+'px'); $(span).css('fontSize', fontsize+'px'); $(span).css('opacity', opacity); if(opacity < 0){ $(self).next().remove(); clearInterval(obj); } }, 80); } </script> </body> </html>