最佳答案
James Allardice对我原始问题的评论中的链接问题引出了我的答案:是的,撇号是HTML元素属性值的有效容器.
By default,SGML requires that all attribute values be delimited using either double quotation marks (ASCII decimal 34) or single quotation marks (ASCII decimal 39). Single quote marks can be included within the attribute value when the value is delimited by double quote marks,and vice versa.