IE8js兼容问题？

$('.chart--btn li button').click(function(){
    var btnText = $(this).text();
    $('.chart-body').append("<div class='condition-content animated3 fadeIn'><button class='condition-btn'>"+ btnText +"</button><button class='delete-condition'><i class='iconfont icon-delete'></i></button></div>");
});


$('#liuliangyunying .ok-btn').click(function(){
    var spanText = $('#liuliangyunying .checked span').text();
    $('.chart-body').append("<div class='condition-content2 animated3 fadeIn color-blue'><span>" + spanText + "</span><a class='delete-condition2'><i class='iconfont icon-close'></a></div>");    
});

代码差不多，为什么第二个在IE8中不生效？