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CSS存档 #21

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yihong0618 opened this issue Aug 9, 2019 · 0 comments

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yihong0618 commented Aug 9, 2019

.xxx>li。>是子代选择符，它表示的是选择.xxx的子代li
@media 如果文档宽度小于 300 像素则修改背景颜色(background-color):

 @media screen and (max-width: 300px) {
    body {
        background-color:lightblue;
    }
}

yihong0618 added 技术文章日记 and removed 日记 labels

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