效果
Html+css：
<div style="margin-left: 5%;margin-right:5%;background: #ffffff;padding-left: 17px;border: 1px solid #dedede;border-radius: 17px;height: 32px"><label for="keyword" id="keyword_label" style="z-index: 2;position: absolute;left: 40%;color: #CCCCCC;line-height: 32px;font-size: 14px;">请输入关键字</label><input type="text" class="goods_name_search" value="" id="keyword" i18nkey="input_keyword" style="width: 94%;color: #909090;background: #ffffff;border: 0px;line-height: 32px;text-align: left"/><img src="../../images/hongbao/query.png" style="width: 14px;height: 14px;position: absolute;top: 73px;left: 50%;margin-left: -15%;color: #999999;" class="seaech_goods"/></div>
Jequry:
$(".goods_name_search").keyup(function () {var keyword = $('#keyword').val();if (keyword == ''){$('#keyword_label').show();$('.seaech_goods').show();} else {$('#keyword_label').hide();$('.seaech_goods').hide();}});
