Enhancements to CSS Selectors

CSS is flexible, and CSS hardening can reduce the complexity of the code.

Collective declaration of selectors

If some selectors have the same style style or are partially identical, we can use the collective Declaration method

h1,h2,h3,h4,h5,p{

color:red;

font-size:12px;

}

H2.special,.special, #special {

text-family: "Song Body";

}

<H2 class= "Special" > Selector declaration

<p class= "Special" > Selector declaration </p>

<p id= "Special" > Selector declaration </p>

Nesting of selectors:

P b{

}