摘要:
<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title></title> <style type="text/css"> *{ margin: 0; padding: 0; } #box{ position: absolute; top: 阅读全文
摘要:
<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title></title> </head> <body> <input type="text" name="txt" id="txt" placeholder="用户名" /> <input 阅读全文