css中grid属性的使用详解

grid布局

加在父元素上的属性

grid-template-columns/grid-template-rows

  • 定义元素的行或列的宽高
  • 如果父元素被等分成了9等分,则,不管有多少个子元素,都显示9等分
  • grid-template-columns: 33% 33% 33%;可以写成grid-template-columns:repeat(3, 33%);
.container {
  width: 200px;
  height: 200px;
  display: grid;
  background-color: coral;
  margin: 10px;
}

.container .item {
  border: 1px solid #ccc;
  background-color: chocolate;
}
.container1 {
  grid-template-columns: 33% 33% 33%;
  grid-template-rows: 33% 33% 33%;
}

grid-template-areas

  • 父元素的grid-template-areas配合子元素的grid-area定义网格区域
  • 一个句点表示一个空的网格单元
.container {
  width: 200px;
  height: 200px;
  display: grid;
  background-color: coral;
  margin: 10px;
}

.container .item {
  border: 1px solid #ccc;
  background-color: chocolate;
}
.container2 {
  grid-template-columns: 1fr 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr;
  grid-template-areas: "header header . footer"
    "main main . sidebar"
    "main main . sidebar";
}

.container2 .item-1 {
  grid-area: header;
}

.container2 .item-2 {
  grid-area: main;
}

.container2 .item-3 {
  grid-area: sidebar;
}

.container2 .item-4 {
  grid-area: footer;
}
<div class="container container2">
  <div class="item item-1">header</div>
  <div class="item item-2">main</div>
  <div class="item item-3">sidebar</div>
  <div class="item item-4">footer</div>
</div>

grid-column-gap/grid-row-gap/grip-gap

  • 指网格线的大小,也可以说是网格子项之间的间距
.container {
  width: 200px;
  height: 200px;
  display: grid;
  background-color: coral;
  margin: 10px;
}

.container .item {
  border: 1px solid #ccc;
  background-color: chocolate;
}
.container3 {
  grid-template-columns: repeat(3, 30%);
  grid-template-rows: repeat(3, 30%);
  grid-column-gap: 2%;
  grid-row-gap: 2%;
}
<div class="container container3">
  <div class="item item-1"></div>
  <div class="item item-2"></div>
  <div class="item item-3"></div>
  <div class="item item-4"></div>
  <div class="item item-5"></div>
  <div class="item item-6"></div>
  <div class="item item-7"></div>
  <div class="item item-8"></div>
  <div class="item item-9"></div>
</div>

justify-items/align-itemsjustify-items

  • 让子元素的内容和纵向列轴对齐
  • align-items让子元素的内容和横向行轴对齐
  • 两个属性都有四个值
  • 我的例子中,为了方便对比,嵌套了grid网格
.container {
  width: 200px;
  height: 200px;
  display: grid;
  background-color: coral;
  margin: 10px;
}

.container .item {
  border: 1px solid #ccc;
  background-color: chocolate;
}

.container4 {
  width: 400px;
  height: 200px;
  grid-template-columns: repeat(4, 25%);
  grid-template-rows: repeat(2, 50%);
}
.container4 .item {
  display: grid;
}
.container4 .item div {
  background-color: coral;
  border: 1px dashed #aaa
}
.container4 .item-1 {
  grid-template-columns: repeat(2, 50%);
  grid-template-rows: repeat(2, 50%);
  justify-items: start;
}
.container4 .item-2 {
  grid-template-columns: repeat(2, 50%);
  grid-template-rows: repeat(2, 50%);
  justify-items: end;
}
.container4 .item-3 {
  grid-template-columns: repeat(2, 50%);
  grid-template-rows: repeat(2, 50%);
  justify-items: center;
}
.container4 .item-4 {
  grid-template-columns: repeat(2, 50%);
  grid-template-rows: repeat(2, 50%);
  justify-items: stretch;
}
.container4 .item-5 {
  grid-template-columns: repeat(2, 50%);
  grid-template-rows: repeat(2, 50%);
  align-items: start;
}
.container4 .item-6 {
  grid-template-columns: repeat(2, 50%);
  grid-template-rows: repeat(2, 50%);
  align-items: end;
}
.container4 .item-7 {
  grid-template-columns: repeat(2, 50%);
  grid-template-rows: repeat(2, 50%);
  align-items: center;
}
.container4 .item-8 {
  grid-template-columns: repeat(2, 50%);
  grid-template-rows: repeat(2, 50%);
  align-items: stretch;
}

css中grid属性的使用详解

扫一扫手机访问