Added support for multiple border styles, e.g. $default_style = ['fill' => '#5b9bd5', 'color' => '#ffffff', 'font-style' => 'bold', 'border' => 'top,right,bottom', 'border-style' => 'thin,thick,thin'];
Added support for multiple border styles, e.g. $default_style = ['fill' => '#5b9bd5', 'color' => '#ffffff', 'font-style' => 'bold', 'border' => 'top,right,bottom', 'border-style' => 'thin,thick,thin'];