如何讓盒子之間有均勻的空間？-有解無憂

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Lost and Found</title>
    <link rel="stylesheet" href="style.css">
    <link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Anton&display=swap" rel="stylesheet">
</head>

<body>
    <div class="nav" >
        <img src="img.png" alt="logo" srcset="">
        <div class="b"><span>Electronics</span></div>
        <div class="b"><span>Plastics</span></div>
        <div class="b"><span>Wearables</span></div>
        <div class="b"><span>Others</span></div>
        <input id="srch" type="search" value="Search">
    </div>

    <div class="main">
    <div>
        <h1 style="font-size: 60px;">Electronics</h1>
        <h1 style="font-size: 60px; font-family:cursive; text-decoration: underline;">-Electronics</h1>

        <div class="head">
            <p>Help The Needy</p>
        </div>
        <div class="head">
            <p>Help The Needy</p>
        </div>
        <div class="head">
            <p>Help The Needy</p>
        </div>
        <div class="head">
            <p>Help The Needy</p>
        </div>
        <div class="head">
            <p>Help The Needy</p>
        </div>
        <div class="head">
            <p>Help The Needy</p>
        </div>
    </div>
    </div>


    </div>
        
</body>
</html>

*{
    margin: 0px;
    padding: 0px;

}

.nav{
    background-color:bisque;
    width: 100%;
    height: 60px;
    display: flex; 
    align-items: center;
    position:fixed;
}

.b{
    height: 60px;
    width: 10%;
    background-color: antiquewhite;
    margin: 2px;
    justify-content: center;
    font-family: 'Anton', sans-serif;
    border-radius: 20px;
    align-items: center;
    display: flex;
}
img{
    width: 80px;
    height: 60px;
}

#srch{
width: 10%;
height:60px;
right: 0%;
position:fixed;
font-size: larger;
}

.main{
   height: 1700px;
   width: 100%;
   border-color: blue;
   border-style: double;
    background-color:lightgoldenrodyellow;
}

.head{
    display: inline-block;
    margin-top: 60px;
    margin-left: 0px;
    margin-right: 0px;
    box-sizing: border-box;
    width: 30%;
    height: 250px;
    border-color:red;
    border-style: groove;
    border-width: 5;
    font-family: cursive;
    font-size: larger;
}

.head 是盒子的類別，而 . main 是放置所有框的 div。其余代碼不應與此問題相關。如何讓盒子之間有均勻的空間？我需要在一行中有 3 個盒子。我是初學者，試圖學習 css、html 和 java 腳本。請幫忙

uj5u.com熱心網友回復：

.head-container{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.head{
    display: inline-block;
    margin-top: 60px;
    margin-left: 0px;
    margin-right: 0px;
    box-sizing: border-box;
    flex:0 1 30%;
    height: 250px;
    border-color:red;
    border-style: groove;
    border-width: 5;
    font-family: cursive;
    font-size: larger;
}

    <div class="head-container">
        <div class="head">
            <p>Help The Needy</p>
        </div>
        <div class="head">
            <p>Help The Needy</p>
        </div>
        <div class="head">
            <p>Help The Needy</p>
        </div>
        <div class="head">
            <p>Help The Needy</p>
        </div>
        <div class="head">
            <p>Help The Needy</p>
        </div>
        <div class="head">
            <p>Help The Needy</p>
        </div>
      </div>

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標籤：html css

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