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CSS first-chjld pseudo-class attributes match a sequence of the first element is which, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, I hope you can gain something.

The first-child pseudo class is used to match the first element of a sequence. We often use it to implement the top (bottom) border of the first element or the last element of a sequence, such as:

The code is as follows:

Ul:nth-last-of-type (3) {

Border: 1px solid black

}

But I want to choose the first div of the page, and the other div ignores it, so what should I do?

The code is as follows:

Body > div:first-child {

Background:#30C! important

}

Note: if div is the first node under body, it cannot be preceded by any elements.

Compatible browsers: IE7+, Firefox, Chrome, Safari, Opera

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