padding | 易学教程

你不知道的css高级应用三种方法——实现多行省略

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前言这是个老掉牙的需求啦，不过仍然有很多人在网上找解决方案，特别是搜索结果排名靠前的那些，都是些只会介绍兼容性不好的使用 -webkit-line-clamp 的方案。如果你看到这篇文章，可能代表你正是从那么多千篇一律的文章中跳转过来的，想找更好地方案的。那恭喜你，没有更好的，只有更合不合适的，当然，前提是我的文章流量够多，能被顶上去你才有机会看到。这里介绍三种多行文本截断的方法，当然第一种就是你看到想吐的 -webkit-line-clamp 方案，不想看就直接跳到第二种方法开始看啦。使用-webkit-line-clamp 对多行文本的容器应用如下样式 div { display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden; -webkit-line-clamp: 2; } 除了 -webkit-line-clamp 其他属性固定不变，主要是将对象作为弹性伸缩盒子模型显示，并设置伸缩盒对象的子元素的排列方式。而 -webkit-line-clamp 是用来控制多少行进行省略优点：浏览器原生支持的省略行为，样式看起来很舒服简单方便使用缺点：看属性的前缀就知道，这是 webkit 内核的浏览器支持的，兼容性不是广泛。使用场景如果你只针对webkit内核浏览器或者移动端

仿Google自动提示 SearchSuggess

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页面： <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>seach</title> <script type="text/javascript" src="jquery.min.js" ></script> <script type="text/javascript" src="js.js"></script> <link href="css.css" rel="stylesheet" type="text/css" /> </head> <body> <form id="form1" runat="server"> <div onClick="keyup_close();"> <ul> <li class="h_14"> <iframe style=

input padding cutting out text in firefox

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问题 In firefox when I use a bootstrap form-control input element, if I pad the input element it cuts out the text by padding inwards rather than around the text. It only seems to have this effect in firefox. This jsfiddle demonstrates the problem: http://jsfiddle.net/v76xB/ Form input html: <input id="name" type="text" class="form-control join-form" placeholder="Enter a Username"> CSS: .join-form { padding: 24px; /*comment this out to see effect of padding */ margin: 12px 0px; font-size: 16px;

Why am I getting 'BadPaddingException' when decrypting?

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问题 Here are my encryption settings: public static String encryptionAlgorithm = "AES"; public static short encryptionBitCount = 256; public static int encryptionMessageLength = 176; public static String hashingAlgorithm = "PBEWITHSHAAND128BITAES-CBC-BC"; //PBEWithSHA256And256BitAES-CBC-BC"PBEWithMD5AndDES";//"PBKDF2WithHmacSHA1"; public static short hashingCount = 512; public static String cipherTransformation = "AES/CBC/PKCS5Padding"; Here is my code to decrypt: public byte[] readMessage ()

How to remember in CSS that margin is outside the border, and padding inside

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问题 I don't edit CSS very often, and almost every time I need to go and google the CSS box model to check whether padding is inside the border and margin outside, or vice versa. (Just checked again and padding is inside). Does anyone have a good way of remembering this? A little mnemonic, a good explanation as to why the names are that way round ... 回答1: When working with CSS finally drives you mad the padded cell that they will put you in has the padding on the inside of the walls. 回答2: pin - P

Padding not working on ImageButton

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问题 In an app I am working on, I have several ImageButtons. Each ImageButton has a background and content in the form of a drawable. Right now the drawable is at maximum size within the confines of the ImageButton, but I want it to scale down so I need to add some padding. The thing is that when I try to do that, it doesn't have any effect. My XML is as follows for each ImageButton: <ImageButton android:id="@+id/button_zero" android:layout_width="0dip" android:layout_height="wrap_content" android

Dealing with padding in a BMP file in C

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问题 I am trying to edit a BMP file in C. My code works for BMP files with no padding but I am having trouble dealing with padding. There are a few other questions on BMP files that I have read but most of them use other languages like C# and Java so I didn't find them very useful. Here is what the pixel array looks like, but much larger: char bmpArray[MAX] = {B,G,R,B,G,R,B,G,R,0,0,0, B,G,R,B,G,R,B,G,R,0,0,0, B,G,R,B,G,R,B,G,R,0,0,0} The zeros are for padding bytes to make each row divisible by 4,

Why does GCC pad this bit-field?

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问题 Program is in C using std=c99, this is on a 64-bit machine. struct epochs { volatile unsigned int epoch : 1; volatile unsigned int pulse : 1; volatile unsigned int active0 : 7; volatile unsigned int active1 : 7; volatile unsigned int counter0 : 24; volatile unsigned int counter1 : 24; }; when I check sizeof(epochs) it gives me 12. I can tell gcc not to pad it by adding __attribute((packed)); so I can work around it. However I would really like to know why 4 bytes are added to pad this 64-bit

* { Box-sizing: border-box; } : To border-box or not to border-box all elements?

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问题 I will start developing a new website, and I'm getting ready to deal with the different methods browsers use to calculate width and height of elements (box model stuff). Somehow, it came to my mind: what if I just apply box-sizing to all elements in the website? I'm one of those who believe that box-sizing: border-box; is one of the best commands there is in CSS, with all its limitations. However, those same limitations are the ones who make me wonder if I should apply box-sizing to all

Where to find the twitter bootstrap less files?

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问题 I'm trying to find a relatively easy way of adding padding to my containers with Twitter Bootstrap. All works well but at some resolutions, the window doesn't fit the screen. I figure I have to go and compensate for the padding by removing some of the width from various span classes? This is quite hard work, just the mathematics alone is problematic. For this reason, perhaps it's best to use the less file that Bootstrap apparently comes with. The only problem is I can't seem to find them