Adjustment of Backend Coding for Japanese Language shown on each browser(Now, Font size looks different on each browser)

Hi, Although Japanese language embedded on my company website can be seen properly on Firefox & google chrome, somehow,the font size of Japanese shown on IE has been shown bigger than one on Firefox & google chrome. I am looking for a capable web-developer who can solve this problem and make the appearance of Japanese language font size shown as same on each browser. The details for environment of my company website are as below. 1. Word Press 4.3.1 [login to view URL]: Jupiter 3. No font family setting at the moment [login to view URL] font type: Georgia, Japanese font type: trebuchet [login to view URL] UTF setting: UTF8 Pls contact me if you can solve this problem. Thank you & Best regards, Mami Yoshizawaas