HTML（Hyper Text Markup Language 超文本置标语言）是一种用来制作超文本文档的简单标 记语言。用HTML编写的超文本文档称为HTML文档，它能独立于各种操作系统平台（如UNIX， WINDOWS等）。自1990年以来HTML就一直被用作World Wide Web上的信息表示语言，用于描述 Homepage的 ...

Most top-ranking websites fail HTML validation. Google explains why perfect code isn’t required, and what matters instead. Many top websites have invalid homepage HTML, yet still rank well.

YouTube wants to put more of the videos you like in front of you, so it's giving its Android and iOS apps a bit of a facelift. Specifically, its homepage is getting a bit of a makeover. Gone are the ...