Como truncar o texto HTML

<html>
<head>
.passter{
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    height:56px;
}
</head>
<body>
<h2 class="passter">Pls follow and help me by liking and etc.This is how to tuncate html text so be happy and try so yeah and check to tell me that it worked in comment</h2>
</body>
</html>
VScoder