Summary of CSS selector definition and usage

CSS Selector [Wildcard Selector] * The asterisk selector will match every element on the page, but I recommend that you never use it in production code. It puts a lot of unnecessary burden on the browser. *{margin:0;padding:0;}[tag selector] (also called type selector): that is, using the html tag name as the selector demo: ul {}[id selector]: ID selectors should be used with caution . Customize the id name for the required style tag. Then write #custom id name {CSS style} in the css file. Note: Each id name must be different. #IDname {width: 960px; margin: auto; }id The selector is unique and reuse is not allowed. If possible, try using a tag name, a new HTML5 element, or even a pseudo-class first. [Class selector] (class) Customize the class name, usage method: write .class name {css style}..className {border-color: blue; font-size:16px

in the css file 1. CSS Selectors

Introduction: *The asterisk selector will match every element on the page, but I recommend that you never produce code again use it in. It puts a lot of unnecessary burden on the browser.

2. HTML5 actual combat and analysis of CSS selector——getElementsByClassName() method

Introduction: The querySelector() method and querySelectorAll() method in HTML5 have been introduced to you in the previous articles. I wonder how well you understand it? Review here First, the querySelector() method returns the first element that matches the passed CSS selector; the querySelectorAll() method returns all elements that match the passed CSS selector, which is a NodeList object. After a brief review, let me share a new method-getElementsByClassName() method.

3. css selector sorting and pseudo-classes and pseudo-objects

##Introduction: CSS selector organization 1. Wildcard * {code...} Function: Set the internal and external patches of all elements in the page to 0; {code...} Set all elements under the class class Set the font color to white; 2. Tag selector {code...} HTML has many tags, you can directly use the tag selector to...

4. PhantomJS Simple Example_PHP Tutorial

#Introduction: PhantomJS simple example. PhantomJS is an interfaceless browser with WebKit as the core and providing a JavaScript programming interface (API). It provides fast and native support for web standards: DOM operations, CSS selectors, JSON,

5. CSS Selectors Summary (Selectors)_html/css_WEB-ITnose

Introduction: Summary of CSS Selectors (Selectors)

6. CSS Selectors Detailed Explanation of Relationship Selectors _html/css_WEB-ITnose

Introduction: Detailed explanation of CSS selectors and relationship selectors

7. CSS Detailed explanation of selectors_html/css_WEB-ITnose

Introduction: Detailed explanation of CSS selectors

8. 30 you CSS selectors you must remember_html/css_WEB-ITnose

Introduction: 30 CSS selectors you must remember

9. Style failure caused by CSS selector priority_html/css_WEB-ITnose

Introduction: Style failure caused by CSS selector priority

10. PhantomJS simple example

Introduction: PhantomJS simple example. PhantomJS is an interfaceless browser with WebKit as the core and providing a JavaScript programming interface (API). It provides fast and native support for web standards: DOM manipulation, CSS selectors, JSON,

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