le is="custom-style">

			:root{
			}
			body{
				overflow:hidden;
			}

			paper-card{
				display:block;
				max-width: 800px;
				margin: auto;
				padding: 20px;
			}

			table{
				max-width: 800px;
				margin: auto;
				margin-bottom: 20px;
			}
			code{
				background: rgb(250,250,250);
			}
			paper-card pre {
				overflow: auto;
				margin: 10px -20px;
				padding: 20px;
				background: rgb(250,250,250);
				border-top: 1px solid rgb(230, 230, 230);
				border-bottom: 1px solid rgb(230, 230, 230);