
How to watch and operate videos

【Recommended environment】
The recommended environment for this site is the following OS , browser version and settings (as of April 2021).
■ PC
· OS: Windows 10, Mac OS X 10.10 (Yosemite) or later
-Browser: Microsoft Edge latest version, Chrome latest version
■ Smartphone
・OS : iOS 8.0 or later, Android 5.0 or later
・ Browser: Safari latest version, Chrome latest version