摘要：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>彩票</title> <style type="text/css"> #wrap{ width: 300px;height: 150px; border: 1px 阅读全文
摘要：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>背景图切换</title> <style type="text/css"> #wrap{ width: 300px;height: 225px; margin: 1 阅读全文
摘要：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>复选</title></head><body> <input type="button" name="" value="全选" id="one"> <input t 阅读全文