为更改移动布局而编写的代码中的媒体查询不起作用

Media query in the code written to change layout for mobile is not working

下面的代码用于在 WordPress 站点的主页中显示横幅。桌面版本确实按预期呈现,而移动版本甚至不显示在移动设备上。为让它工作而编写的媒体查询。您能否更正我的@media 查询并帮助我理解为什么它没有任何效果?

<html>
  <head>
    <style type="text/css">
    .homepage-header-section {
      position: relative;
    }

    .banner-main-text { 
      width: 100%; 
    }

    .homepage-header-section-image img {
      min-width: 100%;
      max-width: 100%;
    }

    .desktop-img {
        display: block;
    }

    .mobile-img {
        display: none;
    }

    .homepage-header-section-content {
      left: 10%;
      width: 35%;
      height: 100%;
      top: 114;
      position: absolute;
      display: flex;
      flex-direction: column;
      align-content: center;
      align-items: center;
    }

    .banner-cta-row {
        padding-top:2rem;
      }

    .shop-gifts-banner-cta {
        padding-right:10px;
      }

    .shop-gifts-banner-cta a, .corporate-gifts-banner-cta a {
      border-radius: 2rem;
    }

    .shop-gifts-banner-cta .btn:hover {
      background-color: #cea67e;
    }

    @media screen and (max-width: 768px) {
      .homepage-header-section-image {
        margin-left: 0;
      }
    }
    
    @media screen and (max-width: 768px) {
      .homepage-header-section-content {
        left: 0;
        position: relative;
        width: 100%;
        display: block;
      }
    }
    </style>
  </head>
  <body>
    <div class="homepage-header-section">
      <div class="homepage-header-section-image">
        <img src="img\PwP_May2022_Banner.jpg" class="desktop-img" alt="May Banner Desktop">
        <img src="img\PwP_May2022_Banner_mobile.jpg" class="mobile-img" alt="May Banner Mobile">
      </div>
      <div class="homepage-header-section-content">
        <div class="banner-main-text">
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        </div>              
        <div class="row banner-cta-row">
          <div class="shop-gifts-banner-cta">
            <a href="https://knackshops.com/pages/wellbeing-gifts" class="btn cta-btn-gold-border" role="button">SHOP GIFTS</a>
          </div>
          <div class="corporate-gifts-banner-cta">
            <a href="https://knackshops.com/pages/customize-gift-sets" class="btn cta-btn-gold-border" role="button">CORPORATE GIFTING</a>
          </div>
        </div>
      </div>
    </div>
  </body>
</html>

您没有在 .mobile-img 处更改 display: none;

同样值的媒体查询也可以改为1@media。我认为这应该可行,但您可能需要检查 类 是否正确。

@media screen and (max-width: 768px) {

      .homepage-header-section-image {
        margin-left: 0;
      }

      .homepage-header-section-content {
        left: 0;
        position: relative;
        width: 100%;
        display: block;
      }

      .desktop-img {
        display: none;
      }

      .mobile-img {
        display: block;
      }
}