<!DOCTYPE html> <html lang="ja"> <meta charset="utf-8"> <style> body { font: 16px/2 sans-serif; } .test { font: 32px sans-serif; text-decoration: 2px red underline; text-underline-offset: 1px; } </style> <div>The underline should skip descenders on the English but not the Japanese:</div> <div class=test>skipping 土砂災害警戒情報 skipping</div>