transform and writing-mode not working on HTML to PDF generate

Greetings,

I am trying to transform my text items by rotating them 90 degrees. My CSS works on browser but when I've generate pdf then its not working .

I used following CSS:

li a {
writing-mode: vertical-lr;
transform: rotate(90deg);
-webkit-transform:rotate(10deg);
-moz-transform:rotate(10deg);
-o-transform:rotate(10deg);
}

Could anybody please suggest any other way?

Hello,

Pdfcrowd does not support this and there is no easy workaround, sorry.