Css Absolute Relative

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10 little-known CSS usage tips 1.css font shorthand rules when you use CSS to define fonts you might do this: font-size:1em; Line-height:1.5em; Font-weight:bold; Font-style:italic; Font-variant:small-caps; Font-family:verdana,serif; In fact, you can abbreviate these attributes: font:1em/1.5 ...

One, the UL label in Mozilla Default is to have padding value, and in IE only margin have value. The same class selector can appear repeatedly in one document, but only once for the ID selector. Using both class and ID for CSS definitions for a label, if the definition is duplicated, the ID selector is valid because the ID has a larger weight than class. 三、一个 compatibility adjustment (ie and Mozilla) stupid way: Beginners may encounter such a situation: the same label ...

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Font Size The CSS2 specification defines a font based on length-horizontal and vertical dimensions. This length is a numeric value and may be preceded with an optional plus (+) or minus (-) marker. 　　In addition, the value may have an optional unit identifier. In addition, the CSS2 specification defines two unit types: absolute units and relative units. The absolute value specifies the unit, and the relative unit specifies a value that is proportional to another value. The following list lists the relative unit identifiers: em: The height of the element font. It is calculated with the font size property of the element that uses the font ...

Using CSS to center the elements is not a simple thing-the same legitimate CSS centered settings in different browsers behave differently. 　　Let's take a look at some of the common CSS methods for centering the elements horizontally. 1. Using automatic outer margin to center the preferred method of centering the element horizontally is to use the margin property-set the Margin-left and Margin-right properties of the element to auto. In practical use, we can create one for these elements that need to be centered ...

Note: In doing this tutorial, I went on the internet to check the relevant information, read a lot of articles, do a lot of testing, and finally summed up the following text, a full article, but we need a word to see, must be careful! And for the course of the said, the best side to see, while practicing, do not learn absolutely do not understand! Positioning (position) layout page is easy to say, just remember the last sentence of this class can be, say difficult, it is quite difficult to understand, need a certain patience, but fortunately, Kwoojan to everyone summed up already very well ...

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position absolute positioning and relative positioning Usage of the positioning: position: absolute; syntax: <div style = "position: absolute; left: 100px; top: 100px"> </ div> There are two cases 1, no setting top, right, bottom, left case, the default based on the parent's "content area of ​​the original point" for the original point 2, ...

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall with the popularization of 3G, more and more people use mobile phones to surf the internet. Mobile devices are outpacing desktop devices and become the most common terminals to access the Internet. 　　As a result, web designers have to face a dilemma: how to render the same page on different sizes of devices? The screen of the handset is smaller, the width is usually below 600 pixel; The width of the PC screen is generally more than 1000 pixels (the current mainstream width is 1366x768), and some have reached ...