One, only in this mountain

When I was a child, my grandfather’s house was in the east, my grandmother’s house was in the north, and my own house was in the southwest.

This month, when I went back to my hometown on National Day, IT only took me 30 minutes to drive to my grandfather’s house along the county road and 40 minutes to drive to my grandmother’s house, which took me about the same time to go to work every day.

Also, when it comes to selectors in CSS, many developers think that I know enough about them. All I know is the whole CSS selectors world.

There is an old saying: you cannot see the true face of mount Lushan, but you are only in it.

What you think you know about the world, you actually know about what’s around you, and the world is much wider, more complex and more varied than you think.

However, it is not easy for people in the mountains to understand the true face of the mountains. One is to become immortal, royal sword flying, overlooking the earth, at a glance; Another is to become a traveler, trekking, climbing mountains and mountains, drip records.

The former can wait for the future development of science and technology, knowledge directly into the brain, but it is not feasible at present; The latter is feasible at the moment, but it needs to go through all kinds of hardships and the spirit of Xu Xiake, which is too difficult.

Fortunately, there is a third way to compromise, which is to spend a little time with the painstaking painting of others in your mind.

“CSS Selector World” is to do such things, like ten years of technical learning and accumulation, in the CSS field of continuous deep cultivation, continuous exploration, continuous research, remove the worst and pick the best, close to practice, as far as possible CSS selector complete world presented in front of everyone.

You don’t have to spend a lot of time exploring the world of CSS yourself, just read CSS Selector World over and over again, and you’ll discover a world you didn’t know existed.

“If I see farther than others, it is because I stand on the shoulders of giants.” Newton –

Progress must be made on the pole

CSS selector world is the second technical book that I have officially published. The first book is CSS world. CSS world has received a lot of praise and sales (Top1 technical book of 2018), but it has also received a lot of feedback that needs to be improved.

First is the content, much feedback learned a lot, if there is CSS3 and other new features of the introduction of good. The second is language. Multiple feedback techniques are absolutely fine, just a little wordy, and some awkward metaphors.

CSS Selector World won’t have that problem this time.

Content on this

From CSS selectors Level 1 to CSS selectors Level 4, this is an introduction to the most advanced selectors. Many CSS selectors are not supported by browsers because they are too new.

At the same time, keep the advantages of the content of “CSS World”, in-depth details, closely linked with practice, are about most people do not know CSS selectors related knowledge, but also a delectable knowledge tour.

The language of this

I got rid of all the “should”, “may” and so on because of the cautious personality of the catchphrase, all changed to “must”, “must”, let everyone read a good.

Suppress the impulse to create their own personality, every word is flat, rules, like the level of the mirror lake, there will be no association, there will be no ambiguity, spring breeze on the face, warm in winter and cool in summer, all the old and young, happy family.

I cooperated with the most meticulous beauty editor sister of the publishing house to review every word and sentence, ensuring that every sentence was correct and refined, and that every sentence could be read well and smoothly.

If CSS World’s language style is as wild as my blog’s, CSS Selector World’s language style has been tweaked.

There is a long way to go

After all, individual capacity is limited, no matter how exhausted it is, it is impossible to cover every detail of a knowledge system.

Therefore, it is inevitable that there will be omissions of knowledge points in the book, and even inaccuracies. You are welcome to correct them. You can go to the official forum I set up to give feedback.

Oneself also will continue to learn, of course, further filling technology in the field of the deep breadth, at the same time, with the passage of time, the browser for CSS Level 4 Level selector will support more and more good, this book is bound to advance with The Times, constantly improve, therefore, there must be a second edition book after the third edition.

There is no end to learning.

Four, rhyme into the music of water stream hanging

Before, a colleague asked me, you are usually so busy, how do you find time to write a book.

In fact, writing a book is very simple, such steps: the first step: write a good outline, contact the editor; Step 2: go back and write a little every night. If you get home late, for example, if you get home more than 11 o ‘clock, write half an hour. If you get home early, you can watch the wife in the new anime and write for half an hour. A few more hours on the weekend, consistently, and at the end of the six months, it’s getting better. Step 3: Review with an editor and wait for publication.

Right? It’s very simple. The trick is to write a little bit every day, you know, you write, you write, and then all of a sudden you realize you’ve finished a book, CSS Selector World, and I wrote it for 5 months, and then I read it and it was published in 5 months, so it was pretty fast. Besides, I also participated in three national front-end communication conferences during the writing of the book. If you don’t have so many social parties, the writing will be faster.

The untold story of the book cover

  1. Book cover is to ask the same department of visual design at the same time, the reward is a big meal;
  2. CSS Selector World’s book cover at first glance looks like it’s just a different color from CSS World’s book cover, but that’s not all. The whales move differently depending on the location of the nebulae. To tell you a secret in advance, the three book covers of “CSS Worlds Trilogy” are linked together to create a complete whale swimming pose.
  3. The photo on the book seal is photoshopped by myself, is there no trace of photoshop? Ha ha ha ~


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I welcome your continued support for this book.

If you want my signature version of the book can go to Taobao for support here, you can also mobile taobao scan the following TWO-DIMENSIONAL code.