CSS网格不能按预期工作

Question

有人能帮我弄清楚为什么下面的CSS网格示例不能按预期工作？这里有一个链接到Codepen：

https://codepen.io/Nekto/pen/yPpaBE

.cards { 
     margin: 0; 
     padding: 1em; 
     display: grid; 
     grid-template-columns: 1fr 1fr 1fr; 
     grid-gap: 20px; 
     grid-template-areas: 
     "a a b" 
     "c d d" 
     "c e e"; 
    } 

.card { 
    background-color: #1E88E5; 
    padding: 2em; 
    color: #FFFFFF; 
    line-height: 1.4; 
    border-radius: 4px; 
} 

.card1 { grid-area: "a"; } 
.card2 { grid-area: "b"; background-color: #4CAF50; } 
.card3 { grid-area: "c"; background-color: #FFCA28; } 
.card4 { grid-area: "d"; background-color: #F06292; } 
.card5 { grid-area: "e"; background-color: #FF8A80; } 

出于某种原因，电网区域不正确的结构。可能我忘了一些东西，但我无法弄清楚究竟是什么。 任何帮助表示赞赏。谢谢！

Answer 1

刚从grid-area值删除引号，它会工作得很好：

.card1 { grid-area: a; } 
.card2 { grid-area: b; background-color: #4CAF50; } 
.card3 { grid-area: c; background-color: #FFCA28; } 
.card4 { grid-area: d; background-color: #F06292; } 
.card5 { grid-area: e; background-color: #FF8A80; } 

body { 
 
    text-align: center; 
 
} 
 

 
.wrap { 
 
    max-width: 70em; 
 
    text-align: left; 
 
    margin: 0 auto; 
 
} 
 

 
.cards { 
 
    margin: 0; 
 
    padding: 1em; 
 
    display: grid; 
 
    grid-template-columns: 1fr 1fr 1fr; 
 
    grid-gap: 20px; 
 
    grid-template-areas: 
 
    "a a b" 
 
    "c d d" 
 
    "c e e"; 
 
} 
 

 
.card { 
 
    background-color: #1E88E5; 
 
    padding: 2em; 
 
    color: #FFFFFF; 
 
    line-height: 1.4; 
 
    border-radius: 4px; 
 
    
 
    h3 { 
 
    margin-top: 0; 
 
    } 
 
} 
 

 
.card1 { grid-area: a; } 
 
.card2 { grid-area: b; background-color: #4CAF50; } 
 
.card3 { grid-area: c; background-color: #FFCA28; } 
 
.card4 { grid-area: d; background-color: #F06292; } 
 
.card5 { grid-area: e; background-color: #FF8A80; }

<div class="wrap"> 
 
    <div class="cards"> 
 
    <div class="card card1"><h3>Card 1</h3>Leverage agile frameworks to provide a robust synopsis for high level overviews. Iterative approaches to corporate strategy foster collaborative thinking to further the overall value proposition. Organically grow the holistic world view of disruptive innovation via workplace diversity and empowerment.</div> 
 
    <div class="card card2"><h3>Card 2</h3>Bring to the table win-win survival strategies to ensure proactive domination. At the end of the day, going forward, a new normal that has evolved from generation X is on the runway heading towards a streamlined cloud solution.</div> 
 
    <div class="card card3"><h3>Card 3</h3>At the end of the day, going forward, a new normal that has evolved from generation X is on the runway heading towards a streamlined cloud solution. User generated content in real-time will have multiple touchpoints for offshoring. Capitalize on low hanging fruit to identify a ballpark value added activity to beta test.</div> 
 
    <div class="card card4"><h3>Card 4</h3>Override the digital divide with additional clickthroughs from DevOps. Nanotechnology immersion along the information highway will close the loop on focusing solely on the bottom line. At the end of the day, going forward, a new normal that has evolved from generation X is on the runway heading towards a streamlined cloud solution.</div> 
 
    <div class="card card5"><h3>Card 5</h3>Organically grow the holistic world view of disruptive innovation via workplace diversity and empowerment. Bring to the table win-win survival strategies to ensure proactive domination.</div> 
 
    </div> 
 
</div>