advanced css selectors

manufacturers should be very happy, ah, broke the right to buy new well ~ ~ ~ So the optimization of the CSS selector is a necessary thing.Third, from right to left to resolve exactly whereIf you have the following HTML:DivId="Div1" >Divclass="A" >Divclass="B" > ...Div>Divclass="C" >Divclass="D" > ...Div>Divclass="E" > ... div> div> div> div class= "F" > div class= "C" > div class= "D" > ... div> div> Span class= "Hljs-tag" >div>DIV>

Learning the Web front-end, the main learning course html5,css,js,ajax Some basic programming language, of course, this is a profound knowledge. And this article is mainly about my choice of CSS in the priority of some simple understanding and views, I hope that your learning to provide some help. Okay, nonsense, let's get started on the subject.CSS Chinese interpretation is "cascading style sheet", here I

recommended selector and the most frequently used selector by daily front-end personnel. . Error {color: red ;} 4. x Y (descendant)Li a {text-Decoration: none ;}Currently, CSS selectors are commonly used to select the sub-element y under the X element. Note that this method selects all matched sub-elements under the sub-element, regardless of the level, therefore, in some cases, it is not suitable. For exa

CSS, also known as style overlap table, today's web page style is basically div+css written out, the function is very powerful, want to introduce a CSS file in the HTML file need to enter a line in the Some basic CSS styles are not introduced, this in the manual and some of the learning site will have, you can check th

Ways to import external CSS style sheets Import an external CSS style sheet using the link tag Import (import) an external style sheet in a style sheet @import url ("/crazy-html5/06css/css/demo01.css"); Using an internal style sheet An internal style sheet can only work on a page, defined by adding a style tag to the

a tag to finish writing. This tag carries several classes, which together create the style of the label.2, each class to be as small as possible, there is a "public" concept, to allow more labels to use.In the end, with ID or class?Answer: Use the class as much as possible, unless you can use the ID for very special situations.Reason: The ID is JS used. That is, JS to pass the id attribute to get the label, so we try to avoid the CSS level ID, otherw

today this article mainly and we talk about several selectors in CSS, the need for friends can refer to, hope to help everyone. 1. Wildcard Selector The wildcard selector is represented by the "*" symbol, which is the widest range of all selectors and matches all elements of the page. /* Set the color of all labels in the current page to be red */* {color:red;

When we add a style to an element, there will be more or less one element that will have several different styles of rules. There are #id, there are. class, direct tag elements, and various combinations of selectors. So how does CSS solve these conflicts, we're going to talk about it this time.CSS is also called Cascading style, Cascade (cascade) that is, will repeat the definition of the style, first throu

1. P~ul P and UL have the same parent element, select all the UL elements after the P element, where p and UL are not necessarily immediately followed, but must have the same parent element E+f Adjacent sibling selector. Selects the element that matches F, and the element is positioned next to the adjacent position of the matched element E E>f The child contains the selector. F is a child element and E is the parent element of F

This article brings you the content is about in-depth understanding of CSS pseudo-class selector knowledge (code example), there is a certain reference value, the need for friends can refer to, I hope to help you. Objective In the past sporadic to understand and use :link , ::after and content other pseudo-class, pseudo-element selector, recently found this lack of reading, so decided to study a little bit, the following is the pseudo-class part of t

Weights and precedence rules for CSS selectorsWord 1105Read 0Reviews 0like 0 We often encounter this when using CSS to define styles for page elements: apply generic styles to generic elements, and then overwrite them on more specific elements. So how do we make sure that our newly defined element style overrides the original style on the target element? In

Weight order"important > Inline > ID > class > tags | Pseudo Class | Property selection > Pseudo objects > Inheritance > Wildcard characters . Original: http://www.nowamagic.net/csszone/css_SeletorPriorityRules.phpWe often encounter this when using CSS to define styles for page elements: apply generic styles to generic elements, and then overwrite them on more specific elements. So how do we make sure that our newly defined element style overrides the

standard, since as a standard, there is a set of relevant rules and methods of calculation,Specificity with a four-bit digital string (CSS2 is three bits) to represent, more like four levels, the value from left to right, the largest on the left, the first level is greater than the level, there is no binary between the levels, the level can not be exceeded.When multiple selectors are applied to the same element then the specificity value is higher an

CSS implementations and selectors Contents of this lesson: One, the implementation of CSS four ways 1, each HTML tag has a style style property with the value of the CSS code. (for one label)2, the way you use the style label . are generally defined in the head tag. (for multiple identical labels)3, when multiple pages

We often encounter this when using CSS to define styles for page elements: apply generic styles to generic elements, and then overwrite them on more specific elements. So how do we make sure that our newly defined element style overrides the original style on the target element? In CSS, the order of the defined style rules is determined according to the particularity of the selector, and the rule with the

the groove)Above is the global style, of course, will be placed in the head of the HTML file, the following style is I write in the column of the current page, you can see, I wrote the highlight of the sampleFormula actually did not work, was covered, no reason ah, should be the style of highlighting before the style Ah, later on the home, so I looked at it,1min later, a flash of light, the selector weight ah, so change the type selector (increase weight), so the problem solved satisfactorily.T

Ways to import an external CSS style sheet Import an external CSS style sheet using the link label Import (import) an external style sheet in a style sheet @import url ("/crazy-html5/06css/