Han Shunping div css basic video tutorial courseware source code

css is the abbreviation of English Cascading Style Sheets. p+css is one of the commonly used terms in website standards (or "WEB standards"). It is usually used to describe the table in the HTML web design language. ) The difference in positioning methods, because in the new website design standards, table positioning technology is no longer used, but DIV+CSS is used to achieve various positioning. "Han Shunping's 2016 latest p css basic video tutorial" is based on HTML and is a basic explanation of the layout and layout of web pages.

We can simply understand p+css like this: p is a container used to store content (text, pictures, elements). CSS is used to specify how the content placed in p is displayed, including the location and appearance of the content.

Course playback address: //m.sbmmt.com/course/433.html

The teacher’s teaching style:

The teacher’s lectures are vivid, witty, witty, and touching. A vivid metaphor is like the finishing touch, opening the door to wisdom for students; a well-placed humor brings a knowing smile to students, like drinking a glass of mellow wine, giving people aftertaste and nostalgia; a philosopher's aphorisms, cultural references Proverbs are interspersed from time to time in the narration, giving people thinking and warning.

The more difficult point in this video is browser compatibility skills:

The so-called browser compatibility problem refers to the problem that different browsers have on the same piece of code. Different parsing results in inconsistent page display effects. In most cases, our requirement is that no matter what browser the user uses to view our website or log in to our system, there should be a unified display effect. Therefore, browser compatibility issues are issues that front-end developers often encounter and must solve.

Before learning about browser compatibility, I would like to divide front-end developers into two categories:

The first category is front-end developers who develop according to the design drawings accurately, which can be said to be accurate. 1px, they can easily find the shortcomings of the design drawing, and in rare cases they will encounter browser compatibility issues, and these problems are often caused by browser bugs, and the pages they create are easy to maintain later. , there are few code reuse problems, and it can be said to be a relatively stable and reliable code.

The second category is front-end developers who basically develop according to the design drawings. Many details are very different, such as spacing, line height, picture position, etc., which often differ by a few px. The realization of a certain effect was achieved through repeated debugging. The specific reasons for this effect are still vague, and the overall layout is very fragile. The slightest change makes it a mess. I don’t know why the code is written this way. Such developers often struggle with compatibility issues. After modifying this browser, it messed up another browser. I changed it over and over but still had no clue. In fact, most of the compatibility problems they encountered should not be blamed on the browser, but on their technology itself.

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