position

CSS中的父相子绝布局

由 拟墨画扇 提交于 2019-12-04 06:48:15
主要应用场景，就是我想要块的布局根据父级来定位，而不是根据页面。 例如，下面的例子中，我用两个半圆拼成一个正圆，思路是用一个父级标签把两个子标签包起来，父标签是一个正圆，然后子标签各占一半，先化成两个矩形，然后就是位置的选择。 这里用到的就是父相子绝，即父标签用到相对位置，子标签用到绝对位置，这样子标签的两个半圆就能贴到父标签，形成一个圆。 注意： 1.这里面父标签需要用相对定位，使用绝对定位的话会脱离文档流，见下面例子。 2.标签写position（relative或者absolute）的话，就会以它的父级标签作为参考，如果父级没写css样式，那就会以body样式作为参考，如果也没写，就会以整个html页面作为参考。例如这里，如果父级不设置position的话，那么那两个子标签就会以整个html页面为参考点，而把矩形飘到页面的两端 脱离文档流，其实就是不是按照页面中文本的顺序，一行一行的排班下来，而是按照自己的意愿，可能存在一些重叠，常用的办法就是定位和浮动。具体见以下几篇补充 什么是脱离文档流 正常文档流和脱离文档流 HTML元素脱离文档流的三种方法 下面这个例子，如果把父标签的相对定位改成绝对定位，那么和父标签相邻的test标签就会和该父标签重叠，也就是脱离文档流 <!DOCTYPE html> <html lang="en"> <head> <meta charset=

How to Set the Left and Top CSS Positioning of a DIV Element Dynamically Using JavaScript

由 天大地大妈咪最大 提交于 2019-12-04 06:45:15
I want to create a div element manually and later add some CSS styling to it using JavaScript. I created a div element and changed it's style with JavaScript. The problem is, some CSS styles do not work. this is the fiddle preview ( color , background , width , height ) those properties worked fine but the ( zIndex , top , left ) properties do not work. I want to know why this happens and how to correct it. this is my JavaScript code: function css() { var element = document.createElement('div'); element.id = "someID"; document.body.appendChild(element); element.appendChild(document

css简单整理

由 ぃ、小莉子 提交于 2019-12-04 06:35:20
style1.css /*统一设置h1、h2、a标签的样式*/ h1,h2,a{ color: aqua; font-size: 50px; } /*如果h1、h2没有上面的单独设置样式那么就会继承body所设的样式*/ body{ color: brown; } /*设置列表标签的strong标签的内容*/ /*派生*/ li strong{ color: blue; } /*strong不会夫覆盖li strong的样式*/ strong{ color: blueviolet; } /*通过id改属性前面加#*/ #pid{ color: cadetblue; } /*派生和id的结合更改a标签的内容*/ #pid a{ font-size: 20px; color: darkgoldenrod; } /*类选择器和派生结合*/ /*类之前加.*/ .dclass p{ color: red; } /*属性选择器*/ [title]{ color: chartreuse; } [title=b]{ color: darkgreen; } input[type="submit"]{ width:120px; height: 120px; margin-left:35px; } test1.htm <!DOCTYPE html> <html lang="en"> <head>

child div height 100% inside position: fixed div + overflow auto

由 浪子不回头ぞ 提交于 2019-12-04 06:34:05
I am experiencing some strange behaviour when attempting the following (see jsfiddle: http://jsfiddle.net/9nS47/ ). HTML: <div id="slider"> <div id="wrapper"> <div id="navigation"></div> <div id="container"> <div id="button"></div> </div> </div> </div> CSS: HTML,BODY { width:100%; height:100%; } * { margin: 0; padding: 0; } #slider { position: fixed; top: 0; bottom: 0px; left: 100px; overflow-y: auto; background-color: red; } #wrapper { position: relative; height: 100%; background-color: #000000; min-height:400px; } #navigation { display: inline-block; width: 80px; height: 100%; background

Fixed Div overlaps scrollbar of static div

由 一世执手 提交于 2019-12-04 06:23:58
I'm having trouble to to style my layout like I want it to. I have a content area #content (the grey you can see in the example image) with a yellow element inside. This div is position:static;height:100%; . Now I have a #left-panel div also, with position:fixed;height:100%; . The problem is, if the content area has not enough space a horizontally scrollbar appears. This will be overlaped of the fixed div. For me it is all logically, but I don't know how to get around this. My scrollbar of the #content -element should be visible the whole width of the window. So it would not be a solution for

android button above keyboard [duplicate]

由 青春壹個敷衍的年華 提交于 2019-12-04 06:19:39
问题 This question already has answers here : Android How to adjust layout in Full Screen Mode when softkeyboard is visible (26 answers) Closed last year . I'm trying to creat a simple activity with an EditText at the top and a Button at the bottom. This last should be above the keyboard when it is open, but I don't get any good result (it stay on the bottom, hidden by the keyboard). I found lot of subjects on this, so I tryed : android:windowSoftInputMode="adjustResize" (also with adjustPan)

jQ 操作滚动条滚动到指定位置

由 孤人 提交于 2019-12-04 06:01:43
jQ: scrollTop () 方法设置或返回被选元素的垂直滚动条位置, $( selector ).scrollTop( position ) position:规定以像素为单位的垂直滚动条位置。 if(item.id == changeInfo.value) { let id = treeData[i].id, childrenLen = $('#' + id).next().find('.tree-second-node').length, h = childrenLen * 28, scrollH = ($('#' + item.id).parent().offset().top - this.height); $('#' + id).next().animate({'height':h + 'px'}); setTimeout(() => { $('.defined-parts').animate({scrollTop: scrollH}); $('#' + item.id).parent().addClass('active'); },500)} 来源： https://www.cnblogs.com/yuNotes/p/11834447.html

Create a scrolling div between two fixed div elements

由 醉酒当歌 提交于 2019-12-04 05:58:53
问题 I'm kind of new to positioning divs how I want them in a website, so I hope someone can help here. What I'm trying to get is a sandwich-type set up with a scrolling content in the middle of two divs. Such that I have a header div and a footer div, both of which have to stay static on the page. Then, between them, I have to have a content div that fills the space between the two fixed divs and have the ability to scroll on it's own. How would I go about building something simple like this? Or

Hexo之Next主题美化代码

由 我只是一个虾纸丫 提交于 2019-12-04 05:53:37
我分别美化了几个不同版本的Next主题，这里把美化代码公布出来，第一种Next版本小于7.3可使用，美化效果如下。 直接修改 \themes\next\source\css\_custom 将以下美化过程复制到 custom.styl 目录即可。 // ************************************************************************************************ // 全局布局美化代码 (包括,主页背景颜色,主页透明度等全局配置) // By: lyshark www.blib.cn lyshark.cnblogs.com // ************************************************************************************************ // 添加主页背景图片与背景颜色 /*body { // background:url(https://source.unsplash.com/random/1600x900); background:url(/images/background.jpg); background-repeat: no-repeat; background-attachment:fixed;

How to float image inside of div

由 筅森魡賤 提交于 2019-12-04 05:31:16
I have this html: <div class="speaker-list"> <div class="view-content"> <div class="views-row views-row-1 views-row-odd views-row-first"> <div class="views-field views-field-title"> <span class="field-content"> <a href="/speaker/keith-anderson">Keith Anderson</a> </span> </div> <div class="views-field views-field-field-job-title"> <div class="field-content">VP, Digital Advisory</div> </div> <div class="views-field views-field-field-company"> <div class="field-content">RetailNet Group</div> </div> <div class="views-field views-field-title-1"> <span class="field-content"> <a href="/session/store
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