Xanir

var CLASS_CHAT_CONTAINER = 'chat-list__list-container';
var CLASS_CHAT_MESSAGE = 'chat-line__message';
var CLASS_MESSAGE_READ = 'chat-message-marked-as-read';

var styles = document.createElement('style');
styles.innerText = `
.chat-list__list-container .chat-line__message.${CLASS_MESSAGE_READ} {
	opacity: 0.5;