这种情况能使用外部样式表或者内部样式表吗？该怎么处理
这种情况能使用外部样式表或者内部样式表吗？
我有一个menu.php,menu.php中定义了左右页面都有的导航菜单部分，即head标签对和body标签都在menu.php中，head标签对之间使用了一个外部样式表style1.css，其他php都require了menu.php。
例如customer.php中require了menu.php,custom.php中不属性menu.php中的那些元素的stype只能使用内联样式表吗？还是可以定义style1.css中?
我在customer.php为html标签定义了class属性，在style1.css中对这个class设置了css属性，结果不起作用。应该起作用吗？
------解决方案--------------------
应该有其他的原因吧！
------解决方案--------------------
至少你没有说清楚你遇到的问题，style有继承关系，这是大家都知道的
------解决方案--------------------
按理应该起作用。
我想你应该检查样式表是否被加载，href是否正确。如果你用chrome浏览器的话，审查元素功能可以帮你看到
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