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Article catalog preface 1, What is HTML? 2, HTML tags 1. Label introduction in < head > < / head > 2. Label introduction in < body > < / body > 3. Semantic label          4. List label 5. Hyperlink label 6. Multimedia Tags 7. Table label 8. Form label 9. Frame label summary preface In the summer vacation ...

Front end HTML learning notes II 1. List label 1. Unordered list (ul) The function of unordered list is to add data to list semantics, and there is no order in these data Format of unordered list: <ul> <li>Items to be displayed</li> </ul> <ul type="square"> <li>Apple</li> <li>Banana ...

What is the scrollTop property? In some cases, the height of "content in element" will exceed the height of "element itself". scrollTop refers to the height of the part of "content in element" beyond the "upper boundary of element". An example is given to illustrate what the scrollTop attribu ...

Objectives of this section Master the basic use of justify content.Master the skills of using justify content alignment for multi column arrangement of items.The reading time is about 5 ~ 10 minutes. Justify content foundation The justify content property is used to set the alignment of items in the spindle direction. The syntax format is as ...

No matter in the process of source code development of the accompanying platform, performance optimization is very critical. Of course, the performance optimization of the front end is more closely related to the user experience. What performance optimization strategies can we adopt in the source code development of the accompanying platform? ...

event processing 5.1. Basic concepts of events HTML events are "events" that occur on HTML elements. When JavaScript is used in HTML pages, JavaScript can "deal with" these events. The syntax rules are: <element event="javascript" /> In HTML documents, all valid elements have corresponding events, such as ...

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I Viewport A viewport is the area of the screen where the browser displays the contents of the page. Viewports can be divided into layout viewports, visual viewports, and ideal viewports 1. layout viewport The browser of general mobile devices has a layout viewport by default, which is used to solve the problem of displaying early PC p ...

HTML5 final assignment: Blue campus culture development enterprise template html(7 pages) HTML+CSS+JavaScript final assignment HTML code student web page course design final assignment Download Web page design Near the end of the term, you are still designing your final homework for HTML web pages. Do you feel the teacher's homework requiremen ...

Javascript can do many magical things, and there are many things to learn. Today we will introduce some short and concise code segments.Gets a random Boolean value (True/False)Using math Random () will return a random number from 0 to 1, and then judge whether it is greater than 0.5. It will get a value with a 50% probability of True or Falseco ...