HTML5语义化元素以及它支持哪些旧版浏览器？

article, header, nav, section, footer{   display:block;}

<script>   document.createElement(&#39;nav&#39;); //nav is semantic element   document.createElement(&#39;header&#39;); //header is semantic element   document.createElement(&#39;article&#39;); //article is semantic element</script>