End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
固定ヘッダーでアンカーリンクがずれる・隠れる場合の対処方法 【スムーズスクロール対応】 https://kasumiblog.org/smooth-scroll-hide/