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let reg =/<iframe(([\s\S])*?)<\/iframe>/ig;//匹配iframe标签let regTest = reg.test(textareaVal);//返回true/falselet regMatch = textareaVal.match(reg)

一边固定不动，一边滚动，滚动到盒子底部后，然后正常滚动 <div class="" style="display: flex;justify-content: space-between;max-width: 1240px;margin: 0 auto;padding: 80px 20px;box-sizing: border-box;"> <div class="" style="width: 400px;height: 400px;position: sticky;top:

<link rel="stylesheet" type="text/css" href="css/max1920.css" media="screen and (max-width:1920px)"/> <link rel="stylesheet" type="text/css" href="css/max1200.css" media="screen and (max-width:1240px)"/> <link rel="stylesheet" type="t...

$("#showcaseInput").on("keyup",function(){　　　　　// ------- 此代码存在bug。 // var _this=$(this).val(); // _this = _this.replace(/[`~!@#$%^&*_\-+=<>?:"{}|,.\/;'\\[\]·~！@#￥%……&*——\-+={}|《》？：“”【】、；‘’，。、]/im,''); // $(this).val(.

js判断ie11浏览器var u = window.navigator.userAgent.toLocaleLowerCase(),ie11 = /(trident)\/([\d.]+)/,b = u.match(ie11);if(b){ alert(ie11);}

html { scroll-behavior:smooth;}

只有点击关闭按钮才会关闭，并记录cookie,刷新不会记录，本文转载 ：https://www.xp.cn/b.php/63896.html<script> window.onload = function() { if (getCookie("footad") == 0) { document.getElementById("xppen_fixed").styl...

$(function() { $(".Button_Close>span").click(function() { $('.position_screen').hide(); }) function setcookie() { let d = new Date(); d.setTime(d.getTime() + 24 * 60 ...

css代码#video_activity .act2_module{width: 100%; min-height:800px; position: relative;background: url(/static/video_activity/img/act_bg.jpg); overflow: hidden;}/* /2 */#video_activity .act2_module1...