558 B
558 B
title
| title |
|---|
| Optional |
Optional
The CSS :optional selector changes the style of an input element if the required tag is not used.
The :optional selector can be used on the input, select and textarea element
In the example below, the required field will be blue and the optional field red
input {
background-color: blue;
}
input:optional {
background-color: red;
}