html.json:

{
   
	"html:5": {
   
		"prefix": "html",
		"body": [
			"<!DOCTYPE html>",
			"<html>",
			"<head>",
			"\t<meta charset=\"UTF-8\">",
			"\t<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">",
			"\t<meta http-equiv=\"X-UA-Compatible\" content=\"ie=edge\">",
			"\t<title>${title}</title>\n",
			"</head>\n",
			"<body>\n\n",
			"</body>",
			"</html>",
		],
		"description":  "HtmlTemplateBase"
	}
}

效果: