| CSS3: nth-child () selector
Reference Links: https://www.w3school.com.cn/cssref/selector_nth-child.asp
Definition and Usage
: nth-child (n) to select the N sub-matching elements belonging to the parent element, regardless of the type of element.
n may be a number, key word or formulas.
_ Examples:
| Expand: CSS3: nth-of-type () selector
Definition and Usage
: Each element nth-of-type (n) to select parent element belonging to match the N-th sub-elements of a particular type
n may be a number, key word or formulas.
_ Examples:
