Vendor/phpspreadsheet/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Html.php
private function assembleCSS(array $pValue = [])
    {
        $pairs = [];
        foreach ($pValue as $property => $value) {
            $pairs[] = $property . ':' . $value;
        }
        $string = implode('; ', $pairs);

        return $string;
    }
private function assembleCSS(array $pValue = [])
    {
        $pairs = [];
        foreach ($pValue as $property => $value) {
            $pairs[] = $property . ':' . $value;
        }
        $string = implode('; ', $pairs);

        return $string;
    }
Takes array where of CSS properties / values and converts to CSS string.

@param array $pValue

@return string