html, body, textarea  {
    font-family: "Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑",Arial,sans-serif;
}

html, body, ul, p, li, h1, h2, h3, h4 {
	padding: 0;
	margin: 0;
    font-size: 12px;
}

input, textarea, video {
	box-sizing: border-box;
}

ul, ol {
	list-style-type: none;
}