CSS external links not supporting while generate PDF file

LoadTagStyle is for loading style attributes for HTML tags, not CSS IDs or Classes. You want to use LoadStyle to load by class:

Unfortunately this method still doesn't do what you want it to do always. For instance, to change the font size you'd think you'd say:

But to get it to work you can only use relative HTML font sizes (1,2,-1, etc) or PT sizes and you must use the size property:

The LoadStyle honestly feels like an afterthought that was only partially completed and I recommend not using it actually. Instead I recommend writing the style attributes directly inline if you can:

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