【简答题】【消耗次数：1】
伪类选择器与类选择器的区别是，[填空]可以随便起名，但是[填空]是CSS中已经定义好的选择器，不能随便起名。
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相关题目
【单选题】
下面关于类选择器说法正确的是（ ）
①
不能为不同类型的HTML元素设置同样的类名
②
类选择器前面有一个“#”
③
在使用类选择器时，需要设置目标元素的class属性
④
为了将类选择器与元素关联，必须将ID属性指定一个适当的值
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下列哪种方式是用类选择器定义样式的?
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p{color:red;}
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.one{color:red;}
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#two{color:red;}
④
p,h1{color:red;}
【单选题】
下列哪种方式是用类选择器定义样式的（ ）
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p{color:red;}
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.one{color:red;}
③
#two{color:red;}
④
p,h1{color:red;}
随机题目
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【单选题】
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