index.html：<!doctype html><html><head> <meta charset="UTF-8&q...
341
index.html：<!doctype html><html lang="en"><head> <meta c...
346
<!DOCTYLE html><html><head><meta charset="utf-8"><link rel=&quo...
303
<!DOCTYLE html><html><head><meta charset="utf-8"><title>绝对定位...
299
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"&...
352
<html><head><link rel="stylesheet" href="http://www.php.cn/static/layu...
301
<!DOCTYLE html><html><head><meta charset="utf-8"><title>那就做个...
382
一、实现功能当鼠标在导航条上移动时，下划线跟着移动，背景色和字体颜色改变，鼠标移出导航条时，下划线回到原位。二、功能代码<!DOCTYPE html> <html ...
340
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"&...
342
html：<!DOCTYPE html><html> <head> <meta charset="utf-8" /> <t...
311
index.html：<!DOCTYPE html> <html lang="en"> <head> <meta&n...
395
<!DOCTYPE html><html><head> <meta charset="utf-8"> <...
492
<!DOCTYPE html> <html lang = "en"> <head> &nbs...
348
<!DOCTYPE html> <html lang="en"> <head> <meta charset=...
381
<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <link rel...
368
