Happy to letter you know, i checked the plesk, i use apache+nginx(fpm) being the web server, i forgot open the gzip for nginx, so the size much bigger than demo page, now i open it, and the css file size reduce to about 100+k, now my site works well, just letter you know that.

Thanks again,
Kind regards,

Many thanks to you, cre8, i will check the plesk, to see whether gzip open or not, if still has question, i will write here.

Again, thanks a lot.

Kind regards,

Hi,creb,many thanks for your reply, i sure know that, i once use the auto-optimize and fastest cache plugin to gzip the css and js and html file, so i can compress the css file from 1.1M to less than 900K, but i think it may still too big for the site, and i install the demo [helth&fitness], i visited the demo page, saw the transfer size only 87k, and the url is : https://demo.tagdiv.com/newspaper_health/, and i download the demo css file, when i saved the code into a css file, the size was 800k+， but i use develop tools of chrome to see the css transfer size, yes, still only 87K, so i am crazy now, what can i do for that.

Please help me, i can give a account of my plesk panel and a account of my wordpress to see what happened there.

Hope your reply.