css 失效 解决办法 <转>

CSS都是正确的,链接也没有出错的话,为什么偏偏CSS样式不生效

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-Frameset.dtd">

Transitional类型:是指一种过渡类型,使用这种类型浏览器对XHTML的解析比较宽松,允许使用HTML4.01中的标签,但必须符合XHTML的语法。这种是现在通用的方法,用dreamweaver创建网页时默认就是这种类型。aa25.cn
Strict类型:严格类型,使用时浏览器将相对严格,不允许使用任何表现形式的标识和属性,如在元素中直接使用bgcolor背景色属性等。
Frameset类型:框架页类型,如果网页使用了框架结构,就有必要使用这样的文档声明。
基本情况介绍完了,现在知道CSS为什么不生效了吧,别看这么一句话,可不能忽视哟!

转载于:https://www.cnblogs.com/shrimp-liao/archive/2011/07/15/2107406.html

``` <%@ page language="java" import="test_package.*" import="java.util.*" import="java.sql.*" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> <link rel = "stylesheet" href = "../style/account_set.css"> </head> <body> <% List<test_information> list=new ArrayList<>(); try{ Class.forName("com.mysql.cj.jdbc.Driver"); String url="jdbc:mysql://localhost:3306/washcustomer"; String username="root"; String password="zqz20011222."; Connection c =DriverManager.getConnection(url,username,password); Statement s=c.createStatement(); String sql="select * from clothes"; ResultSet rs= s.executeQuery(sql); while(rs.next()) { String expected_time; if(rs.getString("expected_time").compareTo("点击选择时间")==0) { expected_time="未选择时间"; } else { expected_time=rs.getString("expected_time"); } test_information clothes=new test_information(rs.getString("material"),rs.getString("owner_tel"),rs.getString("start_time"),expected_time,rs.getInt("price"),rs.getString("washing_method"),rs.getString("clothes_state"),rs.getString("bill_state"),rs.getString("number")); list.add(clothes); } } catch(SQLException e) { e.printStackTrace(); System.out.println("操作失败"); } %> <tit >当前账套</tit> <input type = "button" value = "添加账套" onclick = "add_account.show()" class = "add_a"> <table border=1 class="t"> <tr> <th class = "name">单位名称</th><th class = "id">纳税人识别号</th><th class = "func">操作</th><th class = "func">删除</th></tr> <%for(test_information news:list) {%> <tr> <th class = "name"><%=news.getMaterial() %></th> <th class = "id"><%=news.getTel() %></th> <th class = "func"><form action = ""><input value = "<%=news.getTel() %>" type = "hidden"><input class="op" type = "submit" value ="进入账套"></form></th> <th class = "func"><form action = ""><input value = "<%=news.getTel() %>" type = "hidden"><input class = "op" type = "submit" value ="删除账套"></form></th> </tr> <%} %> </table> <dialog id ="add_account"> <form action = "" > <h1 class = "add_tit">添加账套</h1><br> <h1 class = "t1">单位名称</h1><input type = "text" class = "information" name = "name"><br> <h1 class = "t1">纳税人识别号</h1><input type = "text" class = "information" name = "id"><br> <h1 class = "t1">行业</h1><input type = "text" class = "information" name = "industry"><br> <h1 class = "t1">增值税种类</h1><select class = "select" name = "type"><option>小规模纳税人</option><option>一般纳税人</option></select><br> <h1 class = "t1">审核凭证</h1><select class = "select" name = "check"><option>审核</option><option>不审核</option></select><br> <input type = "submit" value = "新增账套"> <input type = "button" value = "清空" id = "clear"> <input type = "button" value = "返回" onclick = "add_account.close()"> </form> </dialog> <script> document.getElementById("clear").addEventListener("click", function () { var inputs = document.getElementsByClassName("information"); for (let i = 0; i < inputs.length; i++) { inputs[i].value = ""; // 文本框清空 } let selects = document.getElementsByTagName('select'); for(let j=0;j<selects.length ;j++){ selects[j].selectedIndex =0; // 恢复下拉列表至初始状态 } }); </script> </body> </html>```为什么遮罩出现后原本应该出现的弹窗也没了
最新发布
03-15
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