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Дмитрий Сухоцкий
Asked:2020-02-09 14:31:47 +0800 CST2020-02-09 14:31:47 +0800 CST

引导 768px 网格

  • 772

在此处输入图像描述

解释为什么@media 不适用于 768 像素。我知道问题在网格≥768px，但是如何解决呢？

*{
    margin: 0;
    padding: 0;
    font-size: 10px;
}

/*-------------------------------------- header ---------------------------- */
.header-menu-col {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
}
.header-section {
    background-color: #e9e9e9;
    padding: 30px 0 90px ;
}
.header-section .menu ul{
    display: flex;
    list-style-type: none;
}
.header-section .menu ul a{
    text-decoration: none;
    padding: 0 15px;
    color: #191919;
    font-family: "Montserrat";
    font-size: 12px;
    font-weight: bold;
    line-height: 24px;
    text-transform: uppercase;
}
.header-section .menu ul a:hover {
    color: #10c9c3;  
}
.header-section .menu ul a.active{
    color: #10c9c3;
    letter-spacing: 1.2px;
}
.caption-header {
    justify-content: flex-end;
}
.caption-header h1{
    color: #1d1d1d;
    font-family: "Montserrat";
    font-size: 38px;
    font-weight: bold;
    line-height: 48px;
}
.caption-header p{
    color: #787878;
    font-family: "Nunito Sans";
    font-size: 18px;
    font-weight: 400;
    line-height: 28px;
    padding: 25px 0;
}
.caption-header-row {
    justify-content: flex-end;
    margin-top: 150px;
}
.caption-header-row a{
    padding: 20px 40px;
    background-color: #10c9c3;
    color: #FFF;
    font-family: "Montserrat";
    font-size: 12px;
    font-weight: 500;
    line-height: 84px;
    text-transform: uppercase;
    letter-spacing: 1.2px; 
    text-decoration: none;
}
.caption-header-row a:hover {
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
}

@media (max-width: 768px) {
    .menu {
        display: none;
    }
    .caption-header-row {
        margin-top: 50px;
    }
    .header-menu-col {
        justify-content: center;
    }
    .caption-header {
        text-align: center;
    }
}
/*-------------------------------------- /header ---------------------------- */
    
<!doctype html>
<html>
    <head>
        <meta charset="UTF-8">
         <meta name="viewport" content="initial-scale=1"  content="width=device-width"> 
         <link rel="stylesheet"  href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
         <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" integrity="sha384-Zug+QiDoJOrZ5t4lssLdxGhVrurbmBWopoEl+M6BdEfwnCJZtKxi1KgxUyJq13dy" crossorigin="anonymous">
         <link href="https://fonts.googleapis.com/css?family=Montserrat|Raleway" rel="stylesheet">
         <link rel="stylesheet" type="text/css" href="style/style.css">
  
</head>
   <body>
        <div id="header" class="header-section">
          <div class="container">
            <div class="row">
              <div class="col-xl-12 header-menu-col">
                <div class="logo">
                  <a href="#"><img src="image/logo.png" width="31px" height="25px" alt="logo"></a>
                </div>
                <div class="menu">
                  <ul>
                      <li class="menu-item"><a  class="active" href="#home">home</a></li>
                      <li class="menu-item"><a  href="#about">about</a></li>
                      <li class="menu-item"><a  href="#work">work</a></li>
                      <li class="menu-item"><a  href="#process">process</a></li>
                      <li class="menu-item"><a  href="#services">services</a></li>
                      <li class="menu-item"><a  href="#testcontact">testcontact</a></li>
                      <li class="menu-item"><a  href="#contact">Contact</a></li>
                  </ul>
                </div><!-- /============================= /menu =========================== !-->
              </div><!-- /============================= /col logo =========================== !-->
            </div>
            <div class="row caption-header-row">
              <div class="col-md-6 col-sm-12">
                <div class="caption-header">
                  <h1>We Design and Develop</h1>
                  <p>We are a new design studio based in USA. We have over 
                      20 years of combined experience, and know a thing or two 
                      about designing websites and mobile apps.</p>
                  <a href="#">contact us</a>
                </div>
              </div><!-- /============================= /col menu =========================== !-->
            </div><!-- /============================= /row =========================== !-->
          </div><!-- /============================= /container =========================== !-->
        </div><!-- /============================= /section =========================== !-->
        
        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/js/bootstrap.min.js" integrity="sha384-a5N7Y/aK3qNeh15eJKGWxsqtnX/wWdSZSKp+81YjTmS15nvnvxKHuzaWwXHDli+4" crossorigin="anonymous"></script>
    </body>
</html>

html

1 个回答

  1. Best Answer

    因为您没有为这些权限指定阻止行为

    <div class="col-md-6 col-sm-12">

    在这里，您将其从 ≥768px ( ) 写入.col-md-6并从 ≥576px ( ) 更改.col-sm-12。使用类添加最多 <576px 的行为.col-{n}。

    • 0

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