description

# querySelector method Null safety

Element? querySelector (

1. String selectors

)
override

Finds the first descendant element of this document fragment that matches the specified group of selectors.

`selectors` should be a string using CSS selector syntax.

    var element1 = fragment.querySelector('.className');
    var element2 = fragment.querySelector('#id');

For details about CSS selector syntax, see the CSS selector specification.

## Implementation

    Element? querySelector(String selectors) native;