<!DOCTYPE html><html><head> <title>聊天窗口</title> <style type="t...
218
<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>&l...
181
<!doctype html><html> <head> <meta charset="UTF-8">&nbs...
178
<!doctype html><html> <head> <meta charset="UTF-8">&nbs...
213
<html lang="en"> <head> <meta charset="UTF-8" />...
203
<!DOCTYPE html> <html lang="en"> <head> <meta charset=...
283
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <...
201
dom：HTML DOM ，文档对象模型（Document Object Model）的简称，当网页被加载时，浏览器就会创建页面的文档对象模型。通常，通过 JavaScript，我们需要操作 HTML...
415
<!DOCTYPE html> <html> <head> <title>使用css选择器来获取元素</title> </...
321
<!DOCTYPE html> <html> <head>...
272
<!DOCTYPE html><html><head> <title>DOM</title></head><body>...
251
<!DOCTYPE html><html><head> <meta charset="UTF-8"> <...
255
<!DOCTYPE html> <html lang="en"> <head> <meta charset=...
264
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> ...
336
<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>we...
164
