position | 易学教程

Why a fixed element covers a floated element?

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问题 the Html is : <!DOCTYPE HTML> <html lang="en-US"> <head> <meta charset="UTF-8"> <link rel="stylesheet" href="wp-1-main.css"> <title></title> </head> <body> <div class="wrapper"> <div class="textArea"></div> </div> <div class="imageLine"> </div> </body> </html> and the CSS is .wrapper{ width: 100%; height: 400px; position: fixed; top: 50%; margin-top: -200px; border-top: solid 1px black; border-bottom: solid 1px black; background-color: pink; } .imageLine{ width: 500px; height: 1500px; float:

微信小程序的底部和顶部固定（购买和导航栏）

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微信小程序的底部和顶部固定在wxss样式里添加如下代码顶部固定代码片 . position : fixed ; top : 0 rpx ; 底部固定代码片 . position : fixed ; bottom : 0 rpx ; 来源： CSDN 作者：夜的第七章丶链接： https://blog.csdn.net/baidu_33616447/article/details/103837596

Josephus问题的实现

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问题的描述 N个人，编号为1~N,从第一个人开始报数到M，报到M的人移除，剩下的人从被移除的人后面继续从一到M报数，报到M的移除，依次类推，求依次被移除的人的编号。方法一使用队列来解决。因为我们处理的是n个元素里面的第m个元素，如果每次从队列里一边取元素，一边又加到队列的末尾，数到第m的时候，这第m的元素直接出队，不再入队。依此循环n遍，可以按所需顺序移除掉n个元素。 C++代码如下： 1 #include <iostream> 2 #include <stdlib.h> 3 using namespace std; 4 5 struct Node 6 { 7 int data; 8 struct Node* next; 9 }; 10 typedef struct Node* queue; 11 typedef struct Node* position; 12 //创建队列 13 queue create_queue(int N) 14 { 15 queue Q = (queue)malloc(sizeof(Node)); 16 Q->next = NULL; 17 position r=NULL; 18 for (int i = 1; i <= N; i++) 19 { 20 position p = (position)malloc(sizeof(Node)); 21

unity Entitas框架简介

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插件及文档： https://github.com/sschmid/Entitas-CSharp/wiki/Home 资料： https://zhuanlan.zhihu.com/p/78155704 https://gameinstitute.qq.com/community/detail/128758 什么是Entitas Entitas是一个运行效率高的轻量级C# Entity-Component-System(ECS)框架，专门为unity订制。提供内部缓存和快速的组件访问。它经过精心设计，可以在垃圾收集环境中发挥最佳作用。 ## 优缺点：来自大佬的点评优点：遵循这个框架的规则去写代码，代码结构清晰。 ECS这种模式，耦合度就很低，所有的游戏物体都是组件的组合而已，可扩展性强，通过合理组合component就能配置出一个新的游戏物体。很方便的管理所有实体状态，entitas提供了类似状态机的功能，当感兴趣的某个属性发生变化时，能在System中很方便的做出响应，不管什么状态，都能很方便的做出对应处理。 unity本身的开发模式就类似ECS，unity2018更是推出了最新的ECS框架，entitas很符合这种开发模式 entitas自开源以来，一直在更新维护，并受到了unity官方的认可，在unite大会上都有提到。所以，这个框架还是很靠谱的。缺点：国内资料少

Stop page content from moving with drop down menu

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问题 Good morning, I can't stop my content from moving on hover of my dropdown menu. I have tried position:absolute on #sidemenu ul but it doesn't fix it. Here is the html: <div id="divsidemenu"> <ul id="sidemenu"> <li><a href="cv.html">CV</a> <ul> <li><a href="#cv.html">Map</a> </li> <li><a href="#">Download</a> </li> </ul> </li> <li><a href="#">Portfolio</a> <ul> <li><a href="#web.html">Web</a> </li> <li><a href="#print.html">Print</a> </li> <li><a href="#design.html">Design</a> </li> <li><a

Stop page content from moving with drop down menu

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Make joomla module span multiple columns

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问题 I've been searching the web and here for an answer to my question, without avail. My webpages runs on Joomla 1.5 and the frontpage currently has a 3 column/position layout where I can put modules. However, I would like a module which spans the two rightmost positions, whilst keeping the modules below them in the regular "three-column layout". I.e. this is how I want it to look: [MODULE][-------MODULE------] [MODULE][MODULE][MODULE] [MODULE][MODULE][MODULE] My guess is that I need to define a

Why does my dynamically created GroupBox place its RadioButtons too far right on subsequent usages?

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问题 I am adding various dynamically created controls to a panel, based on what the user selects. If a Groupbox, with associated RadioButtons, is the first control, it looks fine: ...but if it's anything other than that, the associated radio buttons seem right-aligned instead of left-aligned, as seen above, and the groupbox is too wide, to boot. Here is the pertinent code (RepaintMockupPanel() is called when the user opts to see what his mockup looks like at any time, and getGroupBox() is the

CSS Clip剪切元素实例

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一、实例1： .fixed { position: fixed; width: 382px; height: 100px; background: red; border: 1px solid blue; left:100px; top:100px; } .fixed img { position: absolute; animation: face 4s ease infinite alternate; -webkit-animation: face 4s ease infinite alternate; clip: rect(0px,129px,100px,0px); } @keyframes face { from { clip: rect(0px,129px,100px,0px); } to{ clip: rect(0px,382px,100px,258px); } } 二、实例2： .fixed { position: fixed; width: 382px; height: 100px; background: red; border: 1px solid blue; left:100px; top:100px; } .fixed img { position: absolute; } .face1 { clip: rect(0px,129px,100px,0px);

无缝滚动

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Html代码： <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>banner</title>  <script type="text/javascript" src="js/jquery-1.11.1.min.js"></script> <script type="text/javascript" src="js/jquery.SuperSlide.2.1.1.js"></script> <title>SuperSlide - SuperSlide组合应用基础示例</title> </head> <body> <style type="text/css"> /* css 重置 */ *{margin:0; padding:0; list-style:none; } body{ background:#fff; font:normal 12px/22px 宋体; } img{ border:0; } a{ text-decoration:none; color:#333; } a