original_string: public function css($css) {
          $css = trim($css);
          if (substr($css, -1) !== ';') {
              $css = $css . ';';
          }
          return $this->att(['style' => $css]);
      }
code: public function css($css) {
          $css = trim($css);
          if (substr($css, -1) !== ';') {
              $css = $css . ';';
          }
          return $this->att(['style' => $css]);
      }
code_tokens: public function css ( $ css ) { $ css = trim ( $ css ) ; if ( substr ( $ css , - 1 ) !== ';' ) { $ css = $ css . ';' ; } return $ this -> att ( [ 'style' => $ css ] ) ; }
docstring: Add custom style for the icon
  
  Example:
  echo FA::check('ok')->css('padding-right:20px');
  echo FA::check('ok', FA::FA_ROT90&FA::FA_SPIN)->css('padding-right:20px');
  
  @param $css string
  @return static
docstring_tokens: Add custom style for the icon