;
Convert Special characters into the string format of HTML (....;). The most common use case may be the message board for handling customer messages.
(And) "(Double quotation marks)"> (Greater than) to>This function only converts the preceding special characters and does not convert all the characters to the ASCII conversion specified in
This article mainly introduces PHP + HTML + JavaScript + Css for simple crawler development, which has some reference value. interested friends can refer to the development of a crawler, first, you need to know what your crawler is going to do. I want to use different websites to find articles with specific keywords and get their links so that I can quickly read them.
According to my habits, I first need t
PHP + HTML + JavaScript + Css for simple crawler development, javascriptcss
To develop a crawler, you must first know what your crawler is intended. I want to use different websites to find articles with specific keywords and get their links so that I can quickly read them.
According to my habits, I first need to write an interface to clarify my ideas.
1. Go to different websites. Then we need a url input b
PHP + HTML + JavaScript + Css implements simple crawler development and javascriptcss. PHP + HTML + JavaScript + Css implements simple crawler development, and javascriptcss develops a Crawler. First of all, you need to know what your crawler is intended. I am going to use PHP + HT
{margin:0;font-size:12px;}Ol,ul{margin:0;padding:0;list-style:none;}A{text-decoration:none;}Img{border:none;}
Common Reset Code
BODY,DIV,P,UL,OL,LI,DL,DT,DD,H1,H2,H3,H4,H5,H6,FORM,INPUT,TEXTAREA,TH,TD {padding:0; margin:0;}//internal and external margin resetTable {border-collapse:collapse; border-spacing:0;} Table border Two-pixel bugimg {border:0;} Picture IE Blue BorderOl,ul{list-style:none;} Remove black spotsH1,h2,h3,h4,h5,h6 {font-weight:normal; font-size:100%;} Label text font s
Series of Knowledge points summaryThese HTML, CSS knowledge points, interviews and peacetime development all need No1-no4 (knowledge points: HTML, CSS, box model, content layout)These HTML, CSS knowledge points, interview and norm
you set the width height, then the settings are displayed as
In-line elements
Does not monopolize a row
If the width is not set, the default is as wide as the content
Inline elements are not allowed to set width and height
Inline block-level elements
In order for an element to be able to have both a single row and a width and height set, the inline block-level element appears
Do not monopolize a row, and you can set the width height
Day16 -- HTML, CSS, and JavaScript summary, day16 -- htmlcss
HTML
A lot of labels: block-level, intra-row
CSS
Position
Background
Text-align
Padding
Font-size
Background-image
Z-index
Opacity
Float (clear: both)
Line-height
Border
Color
Display
Supplement: Page Layout
JavaScript
6. for Loop
For (var item in [11,22, 33,
frequency: 100%Solution: CSS in *{margin:0;padding:0;}Note: This is the most common and the most easy to solve a browser compatibility problem, almost all of the CSS file starts with a wildcard * to set the internal and external patches of each tag is 0.②, browser compatibility issue two: block attribute label float, and there are rows of margin, in the IE6 show the margin ratio set the largeProblem sympto
Php completely filters HTML, JS, CSS, and other labels. Remember to write an article in the past that filters html tags, js code, and css style tags effectively in php: Copy the code as follows :? Php $ strpreg_replace (@ script (.*?) Script @ is, $ str); $ str remember to write an article before
Php effectively filter
:
Priority (weight)Priority priority LINK.CSS tab priority is the lowest style (a), id (b), class attribute and Pseudo-class (c), element and pseudo-element (d) "! Important "priority is highest in all.Css3
Border-radius: Rounded border
Border-radius: Browser kernel:-moz-;-webkit-,-o-Note declaration.
box-shadow:10px (shadow right margin) 20px (shadow Bottom margin) 5px (Blur)
Boder-image:url ("") Round/stretch
Backgroud-size
Backgroud-origin:
Text-shadow
I remember writing an article before.
PHP Effective Filter HTML tags, js code, CSS style tags:
Copy Code code as follows:
$str = Preg_replace ("@$str = Preg_replace ("@$str = Preg_replace ("@$str = Preg_replace ("@?>
, all regular filters HTML tags, but today it is not good to use them. Why? Is that the tag is escaped. For example, this is
Cop
: indicates that the top right bottom left border pixel is 1, solid line, red
41. Set the default internal and external margins of the elements we use to zero.
42. padding: 10px: upper right bottom left
43. list-style: none outside none;: indicates that the list style is none.
44. Element Classification 1. Block elements: div, p, body, h1 ~ H6 can be used as a container and exclusive to a row
2. inline elements: a, span
3. You can use the inline element: {display: block;} to
When I first came into contact with XHTMLCSS to design webpages, I had no experience or casual use of tags. I often thought that I could use whatever I think of, as long as I could achieve the effect. However, with the in-depth study and understanding of the search engine optimization knowledge, it is found that the use of tags is also a learning. We have no experience or freedom to use tags when we are new to designing web pages with xhtml css on the
I learned some detailed summary of html and CSS in the recent period, htmlcss1. border rounded corner attribute: border-radius. The value can be a percentage or custom length. Negative values cannot be obtained. If it is a circle, set the height and width to equal, and set border-radius to 100%2, IE6, IE7, IE8, opera, firfox-2.0 and other browsers, does not support border rounded corner effect. We can use i
Chapter I.I. HTML definition: Hypertext Tag LanguageRole: Making Web pagesTwo. Structure:Content part of a Web page Three. tagsTypes of labelsA. Tagged with the subjectExample:B. Non-subject label self-closingC. Tagged with subject-propertyExample: D. Non-subject-oriented labelsExample: 1. Page Title Tag:2. Content Title Tag:3. Paragraph label:4. Line Wrap Label:5. Horizontal:6. Bold:7. Tilt:8. Underline:9. Note: Iv. representation of special symbols
In css, the function of display: none; is to hide html elements. Otherwise, display: block is usually used ;. However, the display: block; function is to convert the current html element into a block element.Elements such as To hide
);Top: Cut the top length from top to bottom.Left: Cuts the length of ieft to the right.Right: Cut the length from left.Bottom: Cut the length of bottom from top to bottomConvert block-level elements to character-level elementsDisplay:inline;Convert character-level elements to block-level elementsDisplay:block;Handling Overflow Position:absolute; (Must be absolute)overflow:visible; Overflow area visibleOverflow:hidden; Overflow area not visibleOverflo
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