デモページ JavaScript var shinyObj = '.button a span.shiny'; var shinySpeed = 1000; var interval = 3000; $(function() { setTimeout('shinybutton()', 500 ); }); function shinybutton(){ $(shinyObj).animate({left:'+=250px'},shinySpeed).animate({left:'-60px'}, 0); setTimeout('shinybutton()',interval); } HTML <section id="png"> <h2>png ver</h2> <div class="button"> <a href="#"> <span class="shiny"><img src="