CSS技巧:
1.div的垂直居中问题
vertical-align:middle; 将行距增加到和整个DIV一样高 line-height:200px; 然后插入文字,就垂直居中了。缺点是要控制内容不要换行
2. margin加倍的问题
设置为float的div在ie下设置的margin会加倍。这是一个ie6都存在的bug。解决方案是在这个div里面加上display:inline;
例如: 相应的css为 #IamFloat{float:left; margin:5px;/*IE下理解为10px*/display:inline;/*IE下再理解为5px*/}
3.浮动ie产生的双倍距离
#box{ float:left; width:100px; margin:0 0 0 100px; //这种情况之下IE会产生200px的距离 display:inline; //使浮动忽略}
这里细说一下block与inline两个元素:block元素的特点是,总是在新行上开始,高度,宽度,行高,边距都可以控制(块元素);Inline 元素的特点是,和其他元素在同一行上,不可控制(内嵌元 素); #box{ display:block; //可以为内嵌元素模拟为块元素 display:inline; //实现同一行排列的效果 diplay:table;
4 IE与宽度和高度的问题
IE 不认得min-这个定义,但实际上它把正常的width和height当作有min的情况来使。这样问题就大了,如果只用宽度和高度,正常的浏览器里这两个值就不会变,
如果只用min-width和min-height的话,IE下面根本等于没有设置宽度和高度。 比如要设置背景图片,这个宽度是比较重要的。要解决这个问题,
可以这样: #box{ width: 80px; height: 35px;}html>body #box{ width: auto; height: auto; min-width: 80px; min-height: 35px;}
5.页面的最小宽度
min -width是个非常方便的CSS命令,它可以指定元素最小也不能小于某个宽度,这样就能保证排版一直正确。但IE不认得这个,而它实际上把width当 做最小宽度来使。为了让这一命令 在IE上也能用,可以把一个
#container{ min-width: 600px; width:e-xpression (document.body.clientWidth
但第2行的width使用了 Javascript,这只有IE才认得,这也会让你的HTML文档不太正规。它实际上通过Javascript的判断来实现最小宽度。
6.DIV浮动IE文本产生3象素的bug
左边对象浮动,右边采用外补丁的左边距来定位,右边对象内的文本会离左边有3px的间距.
#box{ float:left; width:800px; border:1px solid #E00;}
#left{ float:left; width:50%;border:1px solid #E00;}
#right{ width:50%;border:1px solid #E00;}
*html #left{ margin-right:-3px; //这句是关键}
7.IE捉迷藏的问题
当div应用复杂的时候每个栏中又有一些链接,DIV等这个时候容易发生捉迷藏的问题。
有些内容显示不出来,当鼠标选择这个区域是发现内容确实在页面。
解决办法:对#layout使用line-height属性或者给#layout使用固定高和宽。页面结构尽量简单。
8.float的div闭合;清除浮动;自适应高度;
① 例如:这里的NOTfloatC并不希望继续平移,而是希望往下排。
(其中floatA、floatB的属性已经设置为 float:left;) 这段代码在IE中毫无问题,问题出在FF。原因是NOTfloatC并非float标签,必须将float标签闭合。
在 之间加上 这个div一定要注意位置,而且必须与两个具有float属性的div同级,之间不能存在嵌套关系,
否则会产生异常。 并且将clear这种样式定义为为如下即可: .clear{ clear:both;}
②作为外部 wrapper 的 div 不要定死高度,为了让高度能自动适应,要在wrapper里面加上overflow:hidden; 当包含float的 box的时候,高度自动适应在IE下无效,
这时候应该触发IE的layout私有属性(万恶的IE啊!)用zoom:1;可以做到,这样就达到了兼容.
例如某一个wrapper如下定义:.colwrapper{ overflow:hidden; zoom:1; margin:5px auto;}
③对于排版,我们用得最多的css描述可能就是float:left.有的时候我们需要在n栏的float div后面做一个统一的背景,譬如:
拉长,而 page居然保存高度不变,问题来了,原因在于page不是float属性,而我们的page由于要居中,不能设置成float,所以我们应该这样解决
再嵌入一个float left而宽度是100%的DIV解决之
④万能float 闭合(非常重要!) 关于 clear float 的原理可参见 [How To Clear Floats Without Structural Markup],将以下代码加入Global CSS 中,给需要闭合的div加上
class="clearfix" 即可,屡试不爽. /* Clear Fix */
.clearfix:after { content:"."; display:block; height:0; clear:both; visibility:hidden; }
.clearfix { display:inline-block; } /* Hide from IE Mac */
.clearfix {display:block;} /* End hide from IE Mac */ /* end of clearfix */
或者这样设置:
.hackbox{ display:table; //将对象作为块元素级的表格显示}
11.高度不适应
高度不适应是当内层对象的高度发生变化时外层高度不能自动进行调节,特别是当内层对象使用margin 或paddign 时。
例:#box {background-color:#eee; } #box p {margin-top: 20px;margin-bottom: 20px; text-align:center; }
p对象中的内容
12. Why is there a gap under the image under IE6?
There are many ways to solve this BUG. You can change the layout of the html, or set the img to display:block or set the vertical-align attribute. Vertical-align:top | bottom |middle |text-bottom can be solved.
13. How to align text and text input box
Add vertical-align:middle;
14. Defined in web standards Is there any difference between id and class?
1. Web standards do not allow repeated IDs. For example, div does not allow to be repeated twice, while class defines a class and can theoretically be repeated infinitely. This requires multiple times. You can use it by referencing the definition.
2. Attribute priority issue ID has a higher priority than class, see the example above
3. Convenient for client scripts such as JS, if If you want to perform a script operation on an object in the page, you can define an ID for it. Otherwise, you can only find it by traversing the page elements and specifying specific attributes. This is a relative waste of time and resources.
Far away Far simpler than an ID.
15. Method of displaying ellipsis after the content in LI exceeds the length
This method is applicable to IE and OP browsers
16. Why can’t IE set the scroll bar color in web standards?
The solution is to replace the body with html

The official account web page update cache, this thing is simple and simple, and it is complicated enough to drink a pot of it. You worked hard to update the official account article, but the user still opened the old version. Who can bear the taste? In this article, let’s take a look at the twists and turns behind this and how to solve this problem gracefully. After reading it, you can easily deal with various caching problems, allowing your users to always experience the freshest content. Let’s talk about the basics first. To put it bluntly, in order to improve access speed, the browser or server stores some static resources (such as pictures, CSS, JS) or page content. Next time you access it, you can directly retrieve it from the cache without having to download it again, and it is naturally fast. But this thing is also a double-edged sword. The new version is online,

The article discusses using HTML5 form validation attributes like required, pattern, min, max, and length limits to validate user input directly in the browser.

Article discusses best practices for ensuring HTML5 cross-browser compatibility, focusing on feature detection, progressive enhancement, and testing methods.

This article demonstrates efficient PNG border addition to webpages using CSS. It argues that CSS offers superior performance compared to JavaScript or libraries, detailing how to adjust border width, style, and color for subtle or prominent effect

The article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159

The article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex

This article explains the HTML5 <time> element for semantic date/time representation. It emphasizes the importance of the datetime attribute for machine readability (ISO 8601 format) alongside human-readable text, boosting accessibilit

The article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Dreamweaver CS6
Visual web development tools

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool
