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							|  |  |  |  | id: 5a94fe8569fb03452672e464 | 
					
						
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											2020-12-16 00:37:30 -07:00
										 |  |  |  | title: 在网格中创建网格 | 
					
						
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										 |  |  |  | challengeType: 0 | 
					
						
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										 |  |  |  | forumTopicId: 301128 | 
					
						
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											2021-01-13 03:31:00 +01:00
										 |  |  |  | dashedName: create-grids-within-grids | 
					
						
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											2018-10-10 18:03:03 -04:00
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										 |  |  |  | # --description--
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											2021-02-06 04:42:36 +00:00
										 |  |  |  | 将元素转换为网格只会影响其子元素(即直接后代元素,英文为 direct descendants。意思是一个元素的所有后代元素中,父级元素为该元素的所有元素)。 因此,如果我们把某个子元素设置为网格,就会得到一个嵌套的网格。 | 
					
						
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										 |  |  |  | 例如,如果我们设置 class 为 `item3` 的元素的 `display` 和 `grid-template-columns` 属性,就会得到一个嵌套的网格。 | 
					
						
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										 |  |  |  | # --instructions--
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										 |  |  |  | 请设置 `display` 和 `grid-template-columns`,使类为 `item3` 元素转换为有两列且宽度为 `auto` 和 `1fr` 的网格。 | 
					
						
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										 |  |  |  | # --hints--
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										 |  |  |  | class 为 `item3` 的元素应具有 `grid-template-columns` 属性且属性值应为 `auto` 和 `1fr`。 | 
					
						
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										 |  |  |  | ```js | 
					
						
							|  |  |  |  | assert( | 
					
						
							|  |  |  |  |   code.match( | 
					
						
							|  |  |  |  |     /.item3\s*?{[\s\S]*grid-template-columns\s*?:\s*?auto\s*?1fr\s*?;[\s\S]*}/gi | 
					
						
							|  |  |  |  |   ) | 
					
						
							|  |  |  |  | ); | 
					
						
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										 |  |  |  | ``` | 
					
						
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										 |  |  |  | class 为 `item3` 的元素应具有 `display` 属性且属性值应为 `grid`。 | 
					
						
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										 |  |  |  | ```js | 
					
						
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										 |  |  |  | assert(code.match(/.item3\s*?{[\s\S]*display\s*?:\s*?grid\s*?;[\s\S]*}/gi)); | 
					
						
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										 |  |  |  | ``` | 
					
						
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										 |  |  |  | # --seed--
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							|  |  |  |  | ## --seed-contents--
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							|  |  |  |  | ```html | 
					
						
							|  |  |  |  | <style> | 
					
						
							|  |  |  |  |   .container { | 
					
						
							|  |  |  |  |     font-size: 1.5em; | 
					
						
							|  |  |  |  |     min-height: 300px; | 
					
						
							|  |  |  |  |     width: 100%; | 
					
						
							|  |  |  |  |     background: LightGray; | 
					
						
							|  |  |  |  |     display: grid; | 
					
						
							|  |  |  |  |     grid-template-columns: auto 1fr; | 
					
						
							|  |  |  |  |     grid-template-rows: auto 1fr auto; | 
					
						
							|  |  |  |  |     grid-gap: 10px; | 
					
						
							|  |  |  |  |     grid-template-areas: | 
					
						
							|  |  |  |  |       "advert header" | 
					
						
							|  |  |  |  |       "advert content" | 
					
						
							|  |  |  |  |       "advert footer"; | 
					
						
							|  |  |  |  |   } | 
					
						
							|  |  |  |  |   .item1 { | 
					
						
							|  |  |  |  |     background: LightSkyBlue; | 
					
						
							|  |  |  |  |     grid-area: header; | 
					
						
							|  |  |  |  |   } | 
					
						
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							|  |  |  |  |   .item2 { | 
					
						
							|  |  |  |  |     background: LightSalmon; | 
					
						
							|  |  |  |  |     grid-area: advert; | 
					
						
							|  |  |  |  |   } | 
					
						
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							|  |  |  |  |   .item3 { | 
					
						
							|  |  |  |  |     background: PaleTurquoise; | 
					
						
							|  |  |  |  |     grid-area: content; | 
					
						
							|  |  |  |  |     /* Only change code below this line */ | 
					
						
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							|  |  |  |  |     /* Only change code above this line */ | 
					
						
							|  |  |  |  |   } | 
					
						
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							|  |  |  |  |   .item4 { | 
					
						
							|  |  |  |  |     background: lightpink; | 
					
						
							|  |  |  |  |     grid-area: footer; | 
					
						
							|  |  |  |  |   } | 
					
						
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							|  |  |  |  |   .itemOne { | 
					
						
							|  |  |  |  |     background: PaleGreen; | 
					
						
							|  |  |  |  |   } | 
					
						
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							|  |  |  |  |   .itemTwo { | 
					
						
							|  |  |  |  |     background: BlanchedAlmond; | 
					
						
							|  |  |  |  |   } | 
					
						
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							|  |  |  |  | </style> | 
					
						
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							|  |  |  |  | <div class="container"> | 
					
						
							|  |  |  |  |   <div class="item1">header</div> | 
					
						
							|  |  |  |  |   <div class="item2">advert</div> | 
					
						
							|  |  |  |  |   <div class="item3"> | 
					
						
							|  |  |  |  |     <div class="itemOne">paragraph1</div> | 
					
						
							|  |  |  |  |     <div class="itemTwo">paragraph2</div> | 
					
						
							|  |  |  |  |   </div> | 
					
						
							|  |  |  |  |   <div class="item4">footer</div> | 
					
						
							|  |  |  |  | </div> | 
					
						
							|  |  |  |  | ``` | 
					
						
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										 |  |  |  | # --solutions--
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										 |  |  |  | ```html | 
					
						
							|  |  |  |  | <style>.item3 {grid-template-columns: auto 1fr; display: grid;}</style> | 
					
						
							|  |  |  |  | ``` |