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.
자바스크립트: 배경색에 '어두움 정도' 따라 텍스트의 색상 결정하기 http://yoonbumtae.com/?p=2977