JS implements an element with an unknown width that is centered vertically horizontally in the specified element:This section describes how to implement an unknown width of the element to achieve vertical horizontal centering effect under the specified element, the following is a SPAN element as an example of how to im
JQuery uses (1) to mark element attributes and jquery to mark element attributes
JQuery mainly introduces how jQuery controls pages, including the attributes of elements, css style, DOM model, form elements, and event processing.
Tag Element attributes
Each tag in html has some attributes, which are displayed in various States on the page, such as the
This sec
How jquery Gets the scrolling height of an elementGet the height of the browser display area (viewable area):$ (window). Height ();Gets the width of the browser display area (viewable area):$ (window). width ();Gets the document height of the page$ (document). Height ();Gets the document width of the page:$ (document). width ();The height of the body of the browser's current window document:$ (document.body). Height ();Browser Current Window document body width:$ (document.body). width ();Gets t
First, the method of locating elements
ID: Preferred recognition attribute, the standard recommended for each element of the page set a unique id attribute,
If it is not and it is difficult to find the unique attribute, workaround: (1) Find the development to add the ID or name. If not, the solution can be:1. Find the feature of the button, such as the text of the button is submit;2. Using XPath to locate, you can write://button[@value =
Given an array of size n, find the majority element. The majority element is the element, the appears more than times ? n/2 ? .Assume that the array was non-empty and the majority element always exist in the array.The main element: An array of n elements, which is the primar
Every selector expression and most jQuery methods return a jQuery object. This is almost always what we want, because of the implicit iteration and chaining capabilities that it affords.
Still, there may be points in our code when we need to access a DOM elementdirectly. for example, we may need to make a resulting set of elements available to another JavaScript library. additionally, we might need to access an element's tag name, which is available as a propertyof the DOM
Tag: element centered vertically centered inline element Center Block Element CenterVertical center of elements in single-line solution
To set the row element's row higher than the parent element's height or the height of the parcel block can be vertically centered, see the code effect
Code implementationIndex.htmlhtml lang="zh"> head> meta char
Block-level element Classification (Original: http://kevinpeng.iteye.com/blog/743936)
Block-level elements include structured block elements, terminal block elements, and multi-object block elements.
1. Structured block elements
These elements are used to construct the structure of a document. A good document structure is very advantageous for search engines and other technologies (such as JavaScript. They do not have a semantic meaning. They
Next () of the php array function sequence-move the internal pointer of the array to the next element and return the value of this element. The next () function moves the pointer to the current element to the next element and returns the value of the element. If the internal
Text in a block element, picture centered:CSS settings: text-align:centerstyletype= "Text/css">Div{text-align:Center;}style>Head>Body>Div>imgsrc= "Http://img.mukewang.com/52b4113500018cf102000200.jpg" >Div>:Element classification:block element , inline element (also called inline E
JS implements an element with an unknown width that is centered vertically horizontally in the specified element:This section describes how to implement an element with unknown width to achieve vertical horizontal centering under a specified element, with the span element as an example of how to implement a SPAN
How does jquery obtain the next element of the current element?
How does jquery obtain the next element of the current element:
This topic describes how to use jquery to obtain the next element of the current element. For more i
How jquery obtains the next element of the current element: This section describes how to use jquery to get the next element of the current element, how to use the native JS to get the next element can see the original JS get the next el
One, the transformation between the block element and the inline element
About the transformation between block-level elements and inline elements we can use CSS to solve this, the attribute difference between block elements and inline elements will not be different after using CSS. For example, we can completely add an inline element to a property such as Displ
1 background (composite attribute) and font (composite property):Background: Whether the link of the color picture tiles the background position is scrolled. (can be arbitrarily transferred or omitted)Font: Bold font style font size/Line height font styleFont size and style cannot be omitted2 The spacing problem of the inner block of the lineWhen the inline block element is adjacent , there will be a few pixels between the inline block elements, which
The difference between a SPAN element and a DIV element:This section briefly describes the differences between the span element and the DIV element, because these two elements are very common in the layout, so there are almost no pages that do not apply to these two elements, so here is a brief introduction to the main differences between them.I. The nature of th
The current () function returns the value of the present element in the array.Each array has an internal pointer to its "current" element, which initially points to the first element inserted into the array.End ()-Points the inner pointer to the last element in the array and outputsNext ()-Points the inner pointer to t
The js method is much more troublesome than the jq method, mainly because the FF browser also regards the line feed as the dom element, the following is a small Editor to learn about jsjquery's getting the current element from the sibling level. If you need a friend to learn it, var chils = s. childNodes; // obtain all child nodes of s.
Var par = s. parentNode; // obtain the parent node of s.
Var ns = s.
The parent element box contains a child element box that gives the child element box a vertical outer margin margin-top, and the parent element box goes down the margin-top value, while the child element and the parent element's margins do not change.HTML code:
CSS style:
The same is true for the child element that moves around an element into the positioning position along with it.
At the beginning, my logic was based on the four coordinates of the box. I didn't think of the four regions.
In addition, JavaScript only supports the mouseenter event in IE, but does not support both Google and Firefox. Because mouseover will bubble up, writing this effect will shake a bit. I t
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