grid - 隐式命名网格线名称

1.隐式的指定网格线反向指定了隐式的网格区域名称，命名的网格区域隐式的命名了网格线名称.

指定网格区域会给网格区域边线添加隐式的网格线名称。这些网格线的命名是基于网格区域来命名，只是在网格区域名称的后面添加后缀-start或-end.

 <view class="grid">
   <view class='item1'>1</view>
   <view class='item'>2</view>
   <view class='item'>3</view>
   <view class='item'>4</view>
   <view class='item'>5</view>
   <view class='item'>6</view>
   <view class='item'>7</view>
   <view class='item'>8</view>
   <view class='item'>9</view>
 </view>

 page {
   color: #fff;
   font-size: 16px;
 }
 
 .grid {
   /* padding: 1%; */
   display: grid;
   grid-gap: 1px;
   line-height: 100px;
   grid-template-areas: "header header" "content sidebar" "footer footer";
   grid-template-rows: 80px 1fr 40px;
   grid-template-columns: 1fr 200px;
 }
 
 .item1 {
   /* grid-area: inner; */
   /* grid-row-start: header-start;
   grid-row-end: content-start;
   grid-column-start: footer-start;
   grid-column-end: sidebar-end; */
 }
 
 .item {
   text-align: center;
   background-color: #d94a6a;
 }
 
 .item1 {
   text-align: center;
   /* line-height: 300px; */
   background-color: #1aa034;
 }

2.在这个示例中,header通过隐式的网格线名称设置其位置

 page {
   color: #fff;
   font-size: 16px;
 }
 
 .grid {
   /* padding: 1%; */
   display: grid;
   grid-gap: 1px;
   line-height: 100px;
   grid-template-areas: "header header" "content sidebar" "footer footer";
   grid-template-rows: 80px 1fr 40px;
   grid-template-columns: 1fr 200px;
 }
 
 .item1 {
   /* grid-area: inner; */
   grid-row-start: header-start;
   grid-row-end: content-start;
   grid-column-start: footer-start;
   grid-column-end: sidebar-end;
 }
 
 .item {
   text-align: center;
   background-color: #d94a6a;
 }
 
 .item1 {
   text-align: center;
   /* line-height: 300px; */
   background-color: #1aa034;
 }