margin

Python爬虫入门 Urllib库的基本使用

由 浪尽此生 提交于 2019-12-23 06:13:26
1.分分钟扒一个网页下来 怎样扒网页呢？其实就是根据URL来获取它的网页信息，虽然我们在浏览器中看到的是一幅幅优美的画面，但是其实是由浏览器解释才呈现出来的，实质它是一段HTML代码，加 JS、CSS，如果把网页比作一个人，那么HTML便是他的骨架，JS便是他的肌肉，CSS便是它的衣服。所以最重要的部分是存在于HTML中的，下面我们就写个例子来扒一个网页下来。 1 import urllib2 2 3 request = urllib2.Request("http://www.baidu.com") 4 reponse = urllib2.urlopen(request) 5 6 print reponse.read() 1 var _chrome_37_fix = document.createElement("style"); 2 _chrome_37_fix.type="text/css"; 3 _chrome_37_fix.setAttribute("data-for","result"); 4 _chrome_37_fix.innerHTML = ".t,.f16,#kw,.s_ipt,.c-title,.c-title-size,.to_zhidao,.to_tieba,.to_zhidao_bottom{font-size:15px;} .ec-hospital

How does browsers compute 'auto' value?

由 房东的猫 提交于 2019-12-23 05:32:27
问题 I have two similar styles. When I viewed them in the chrome inspector they have different values although the styles applied are similar. The margins of the elements have the 'auto' value but when computed by the browser there is a big difference between them although the width is the same. For those who will be asking me to point it to a single stylesheet, I actually can't because the first style is for a wordpress theme and the other one is for a whmcs template. Update: added these two

How to add Margins on UITableView to inset content

由 六眼飞鱼酱① 提交于 2019-12-23 05:04:56
问题 I have a table view and I want to include margins so that the table's content has some breathing room on the left and right, and also between cells. 回答1: I managed to do a table view like: My Storyboard design is like: What I did was I added a UITableView to the main view and gave a margin of 10. I added constraints as shown in figure. Changed the Seperator style to None . Then I added two UITableViewCell s. For Holding the data with custom row height 70.0 Row with same background of

layui table设置td select 避免遮蔽

由 試著忘記壹切 提交于 2019-12-23 03:50:09
layui table设置td select的时候，必须先设置样式 .layui-table-cell { overflow: visible !important; } .layui-table-box { overflow: visible; } .layui-table-body { overflow: visible; } 上面三个样式必须设置，不然显示的时候会有问题 /* 使得下拉框与单元格刚好合适 */ td .layui-form-select{ margin-top: -10px; margin-left: -15px; margin-right: -15px; } 来源： CSDN 作者： pmlptf 链接： https://blog.csdn.net/pmlptf/article/details/103654676

Adding Margins to a dynamic Android TextView

由 心不动则不痛 提交于 2019-12-23 02:29:06
问题 I've looked through a heap of previous answers on this , and tried the code marked as working, but so far nothing I do can convince the TextView I'm creating at runtme from filling the screen completely from left to right. I want to add a margin on both sides similar to a regular Toast. After that I can add a drop shadow to the shape. Here my form layout. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id

实现滚动时页面伸缩效果

由 北战南征 提交于 2019-12-23 01:04:48
　　不知道怎么起这篇文章的标题才能表达出我实现的页面效果， 　　项目背景：嵌在原生开发的APP中。 　　上图给大家看一下 　　 　　左侧图片代表进入app时页面的展示效果，右侧为页面滑动时的效果。 　　因为原生开发的APP有导航栏的，所以根据他们封装的抛出H5的API，将导航栏设置为透明色，这样才可以将原生开发的导航栏的背景色去掉。 　　首先说一下整个页面的布局。 　　因为这个布局我是用fixed定位写的，尤其是中间白色区域中顶部的标题Tab切换部分滑到顶部时固定。所以使用的页面的布局代码大致如下 <body> <div class="container"> <header class="headBox"> 　　<ul class="headerList"> <li class="header-item"> 　　　　<i class="indexIcon scan"></i> <p class="header-title">按钮一</p> </li> <li class="header-item"> 　　<i class="indexIcon authorze"></i> 　　<p class="header-title">按钮二</p> </li> <li class="header-item"> <i class="indexIcon lending"></i> <p

盒子模型

由 只愿长相守 提交于 2019-12-23 00:53:01
认识盒子模型 每个矩形都有元素的内容、内边距（padding）、边框(border)、外边距(margin)组成。 （1）网页是有多个盒子嵌套排列的结果。 （2）内边距出现在内容区域的周围，当给元素添加背景色或背景图像时，该元素的背景色或背景图像也将出现在内边距中。 （3）外边距是该元素与相邻元素之间的距离，如果给元素定义边框属性，边框将出现在内边距和外边距之间。 （4）虽然盒子模型拥有内边距、边距、外边距、宽和高这些基本属性，但是并不要求每个元素都必须定义这些元素。 边框属性 设置内容 样式属性 常用属性值 上边框 border-top-style:样式； border -top-width:宽度； border-top-color:颜色； bordet-top:宽度 样式 颜色 ； 下边框 border-bottom-style:样式； border-bottom-width:宽度； border-bottom-color:颜色； border-bottom:宽度 样式 颜色； 左边框 border-left-style:样式； border-left-width:宽度； border-left-color:颜色； border-left:宽度 样式 颜色； 右边框 border-right-style:样式； border-right-width:宽度； border

CSS code highlighter - margin in pre code tag

由 为君一笑 提交于 2019-12-22 19:02:10
问题 Please look at this fiddle: Here What I am looking for is a way to remove that extra space at top (the one between black circular 1 and top edge of pre tag) in first example and make it look like second one The first example has some extra space above it (except the margin from strong elements), and I know that its because of the extra new-line after <pre><code> I didn't wanted to remove that extra newline as removing it makes the code look really unreadable, so I added this pre > code >

Unexpected <body> body behaviour as it's pushed down by child's margin-top [duplicate]

由 我们两清 提交于 2019-12-22 17:29:13
问题 This question already has answers here : Margin-Top push outer div down (8 answers) Closed 5 years ago . HTML problems always look so simple that I nearly feel embarassed asking them. But let it be, I have no idea why this is happening. In this fiddle http://jsfiddle.net/o5ee1oag/2/ body is being pushed down by header's margin(50px): <body> <div id="background"></div> <header> <ul> <li>Button 1</li> <li>Button 2</li> </ul> </header> </body> In consequence div#background { position: absolute;

前端学习（184）:BFS规范 解决margin叠加问题

由 安稳与你 提交于 2019-12-22 14:18:43
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>解决margin叠加</title> <style> .div{width: 100px;height: 100px;background: red;margin-bottom: 30px;} .div{width: 100px;height: 100px;background: blue;margin-top: 30px;} .box{overflow: hidden;} </style> </head> <body> <div class="box"> <div class="div1"></div> </div> <div class="box"> <div class="div2"></div> </div> </body> </html> 运行结果 来源： CSDN 作者： 你知道歌谣吗？ 链接： https://blog.csdn.net/weixin_43392489/article
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