flex布局 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-around;
        }
        .item {
            width: calc(calc(100% / 3) - 10px);
            border: 1px solid blue;
            height: 30px;
            line-height: 30px;
            color: red;
            margin-bottom: 10px;
        } 
        .item:nth-child(n+4) {
            margin-bottom: 0;
        }
    </style>
</head>
<body>
    <div class="box">
        <div class="item">1</div>
        <div class="item">2</div>
        <div class="item">3</div>
        <div class="item">4</div>
        <div class="item">5</div>
        <div class="item">6</div>
    </div>
</body>
</html>


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        /* .container {
  display: flex;
  flex-wrap: wrap;
  border: 1px solid red;
}

.item {
  flex-basis: 33.33%;
  border: 1px solid blue;
  box-sizing: border-box;
  text-align: left;
 
} */

.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  border: 1px solid red;
}

.item {
  flex-basis: calc(33.33% - 10px);
  margin-right: 15px;
  margin-bottom: 15px;
  box-sizing: border-box;
  text-align: left;
  border: 1px solid blue;
}
.item:nth-child(3n) {
  margin-right: 0;
}

    </style>
</head>
<body>
    <div class="container">
        <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>
</body>
</html>


 


 




 






            

            
posted @ 
2023-06-29 12:02 
Webwhl 
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