css first of class

1. Use class_name to write the class name.I used to like writing with class-name, but it seems that there is no difference between the two. However, I am opposed to writing class names using className because I have always been skeptical about Browser case sensitivity. However, I will write the id as a camper. For the reason, see the next one. 　　2. Style uses

First, write the class name in Class_name way. I used to like to write with Class-name, but it seems that there is no difference between the two. But I'm more opposed to writing class names with ClassName because I'm always skeptical of browser-sensitive issues. But ID I'll write hump style, for the next one. Second, the style is used

The native JS method "Document.getelementsbyclassname" is not available in IE8 and the following browsers, so it writes a method compatible with IE.The full page code is as follows:Testjsgetcssclass.htmlhtml>head>style type="Text/css">. Test_class_div {font-size : 14 px ; border : 1 px Solid #ccc ; margin : px ; padding : 5 px ; font-weight : bold ; color : red ; Span class= "Hljs-ru

Because the environment to compress js,css offline, it is impossible to use the online compression function of the network, So I want to find a PHP class to compress JS or CSS, GitHub did not find particularly good, so want to ask everyone, hope to recommend, thank you! Reply content: Because the environment to compress js,

know. the Content property of the CSS is specifically applied to the before/after pseudo-element, which is used to insert the generated content. The most common application is to use pseudo-classes to clear floats.. clearfix:after { content: ".";//the content attribute Display:block is used here ; height:0; Visibility:hidden; Clear:both; }.clearfix { *zoom:1;}After pseudo-elements generate block-level elements of a point after the

Css id selector and CLASS selectorIn CSS, a selector is a pattern used to select elements that require adding styles.The attribute selector can select an element based on its attributes and attribute values. Three basic selector types: Tag name selector, class selector, and ID Selector The syntax is as follows: 1. Tag

Before writing a "detailed CSS properties-: Before : After" blog, then I did not distinguish between pseudo-elements and pseudo-class, so in the article to confuse the concept, fortunately @riophae brother corrected my mistake, so today intends to study the difference between the two.First, read the w3c definition of both: CSSPseudo-classes are used to add special effects to certain selectors. CSSPseu

Difference between css style and class, cssclass Problem description: After clicking the export button on the webpage, the table content on the page is saved as an excel file, but the table style cannot be saved. Analysis process: 1. Use a class instead of a style in a table. The class definition is not exported

Class SelectorIn CSS, the class selector is displayed with a point number: Copy Code code as follows: . Center {Text-align:center} In the above example, all HTML elements that have the center class are centered. In the following HTML code, the H1 and P elements all have the center

Titlehtml>head> meta http-equiv="Content-type" Content="text/html; Charset=utf-8 "> title>CSS Selectortitle> -- style type="Text/css"> / * Tag Selector * / P{ color:red; } Li{ font-size:px; } / * Class selector * / . DB{ font-size:px; color:blue; } / * ID selector * / #welcome{ font-weight:

(1). Link pseudo-Class useA: link {color:pink;}-----not clickedA: visited{color:skyblue;} -----already clicked on the linkA: hover{color:red;} -----The color change of the mouse move a: active{color:black;} ----The color change of the selected linkTips:In the CSS definition, a:hover must be placed after A:link and a:visited to be validIn the CSS definition, a:act

The code is as follows Copy Code Example of upper area, let's introduce the following The code is as follows Copy Code CSS part The code is as follows Copy Code /*css part, pay attention to the value of border, margin, left and right.#nav_demo {Margin-top:20px;margin-left:20px;font-size:12px;font-family:micro

One of the main advantages of CSS is that it makes it easy to apply a set of styles to all the same types of elements. Of course it is done by selectors.Basic rule structure:syntax = selector + declaration block1. Element selector--use HTML element name directly, point to document ElementUsing the element selector is the best choice if you want to add indentation to all paragraphs.p{ Text-indent:2em; }2. class