批改状态:合格
老师批语:只是简单的将课堂代码抄了一遍提交,应该换个页面组件来写,这样的作业适合自己练习就不要再发出来了
对齐方式分为两大类,一是项目在网格单元内的对齐方式,而是项目在容器内的对齐方式
在声明了grid布局容器内使用place-items:垂直 水平;属性
注意:垂直方向:start 代表上 center 中 end 下
水平方向:start 代表左 center中 end 右
如果垂直方向和水平方向值一样可以只写一个
使用place-self:垂直 水平;属性
<style>.container{border: 1px solid #000;padding: .5em;display: grid;grid-template-columns: repeat(3,1fr);grid-template-rows: repeat(2,5em);grid-auto-rows: 5em;gap: 0.5em;}.container>.item{background-color: lightcyan;border: 1px solid #000;padding: 0.5em;}.container>.item{width: 5em;height: 2em;}/* 项目在网格单元的对齐方式 */.container{/* place-items:垂直方向,水平方向 *//* 垂直向上,水平居中 */place-items: start center;/* 垂直水平+都居中 当第一个值和第二个值一样可以省略*/place-items: center;/* 继承 */place-items: inherit;/* 初始化 */place-items: initial;/* 取消项目的固定尺寸,拉伸 */place-items: stretch;}/* 单独设置项目的对齐方式 */.container>.item:nth-of-type(5){background-color: yellow;/* 垂直居中 */place-self: center center;place-self: end start;}</style><body><div class="container"><span class="item">item1</span><span class="item">item2</span><span class="item">item3</span><span class="item">item4</span><span class="item">item5</span><span class="item">item6</span><span class="item">item7</span><span class="item">item8</span><span class="item">item9</span></div></body>
使用属性:place-content
<style>.container{height: 25em;border: 1px solid #000;padding: 0.5em;display: grid;/* 宽度得是固定值,得有剩余空间才能分配 */grid-template-columns: repeat(3,10em);grid-template-rows: repeat(2,5em);grid-auto-rows: 5em;gap: 0.5em;}/* 项目在网格容器的对齐方式 */.container{/* 1.将所有项目作为一个整体在容器中对齐 */place-content: start start;place-content: start center;place-content: center;/* 2.将所有项目打散成一个个独立个体在容器中设置对齐方式 *//* 水平垂直 两端对齐 */place-content: space-between space-between;/* 垂直分散对齐 水平平均对齐*/place-content: space-around space-evenly;}</style>




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