:root{--color-text:#222;--color-background:#fff}*,:before,:after{box-sizing:border-box}html{-moz-text-size-adjust:100%;text-size-adjust:100%}body{color:var(--color-text);background:var(--color-background);margin:0;font-family:Hiragino Sans,Noto Sans JP,sans-serif;line-height:1.8}