本页面中的信息并不完全以您的首选语言展示，我们正在完善其他语言版本。想要以您的首选语言了解相关信息，可以点击这里下载PDF。
发布于 : Nov 10, 2015
不在本期内容中
这一条目不在当前版本的技术雷达中。如果它出现在最近几期中，那么它很有可能仍然具有相关参考价值。如果这一条目出现在更早的雷达中，那么它很有可能已经不再具有相关性，我们的评估将不再适用于当下。很遗憾我们没有足够的带宽来持续评估以往的雷达内容。
了解更多
Nov 2015
试验
Debugging CSS problems can be painful. How many times have you had to trawl through thousands of overridden styles to work out the source of your problem? This has led many of our teams to introduce various guidelines such as avoiding cascading and overrides, making styles opt-in and emphasizing thoughtful naming. BEM is a simple CSS naming convention (standing for Block, Element, Modifier) that helps give semantic clarity and structure to your CSS. By using BEM, it becomes much easier to understand which CSS rules are influencing the appearance of an element and, more importantly, the intent of those rules. This approach can be seen as moving the OO lesson of favoring composition over inheritance to the world of CSS.
