html - Bootstrap 响应式图像尝试在 Safari、Chrome、FF 中表现不同

Question

我正在尝试设置适合网站导航栏并用作 Logo 的图像样式。我遇到的问题是它在三个主要浏览器中的显示方式不同。

明确地说，当我使用 height 属性并使图像在 FF 中显示良好时，对于 Safari 来说它变得太大了，反之亦然。对于 Chrome，这种行为甚至更奇怪。出于某种原因，它甚至拒绝承认相关类的存在。当我 checkin Page Source Code 并导航到有问题的 CSS 时，该类不存在。缺少的类在下面的代码中称为 .logo-img。

HTML:

<nav class="navbar navbar-default">
            <div class="container">
                <div class="navbar-header">
                    <a href="index.html" class="navbar-brand"><img src="{% static "tshirt-theme/img/logo-kindbook.png" %}" class="logo-img" alt="Shirt Store"></a>
                    <div class="navbar-buttons">
                        <button type="button" data-toggle="collapse" data-target=".navbar-collapse" class="navbar-toggle navbar-btn">Menu<i class="fa fa-align-justify"></i></button>
                    </div>
                </div>

为简洁起见省略了其余部分

CSS:

.navbar-default {
  background-color: #ffffff;
  border-bottom-color: transparent;
}
.navbar-default .navbar-brand {
  color: #333333;
}

img.logo-img {
    height: 300%; !important
}

.logo-img > img {
    height: 300%; !important
}

请原谅 !important，因为我正在使用它来尝试进行故障排除和破解。

火狐:

Safari :

Chrome :图片放大到全分辨率并占据整个页面。

问题是为什么会发生这种情况(尤其是 Chrome 没有注册 CSS 类)，我怎样才能想出一些跨浏览器兼容的东西？

Answer 1

如果您使用的是 bootstrap 3，那么您应该减小图像大小，然后移除 navbar-brand 填充。

更多详情 bootstrap navbar

.navbar-brand {
  padding: 0px !important;
}
.largeImg .navbar{
 min-height:151px;
}
.largeImg .navbar-nav>li>a{
padding-top:65px;
padding-bottom:65px;
}

<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<div class=container>
  <nav class="navbar navbar-default">
    <div class="container-fluid">
      <!-- Brand and toggle get grouped for better mobile display -->
      <div class="navbar-header">
        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
        <a class="navbar-brand" href="#"><img src="http://www.placehold.it/70x50"></a>
      </div>

      <!-- Collect the nav links, forms, and other content for toggling -->
      <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
        <ul class="nav navbar-nav">
          <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
          <li><a href="#">Link</a></li>
          <li class="dropdown">
            <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
            <ul class="dropdown-menu">
              <li><a href="#">Action</a></li>
              <li><a href="#">Another action</a></li>
              <li><a href="#">Something else here</a></li>
              <li role="separator" class="divider"></li>
              <li><a href="#">Separated link</a></li>
              <li role="separator" class="divider"></li>
              <li><a href="#">One more separated link</a></li>
            </ul>
          </li>
        </ul>

      </div>
      <!-- /.navbar-collapse -->
    </div>
    <!-- /.container-fluid -->
  </nav>
  <div class="largeImg">
    <nav class="navbar navbar-default">
      <div class="container-fluid">
        <!-- Brand and toggle get grouped for better mobile display -->
        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
          <a class="navbar-brand" href="#"><img src="http://www.placehold.it/150x150"></a>
        </div>

        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
          <ul class="nav navbar-nav">
            <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
            <li><a href="#">Link</a></li>
            <li class="dropdown">
              <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
              <ul class="dropdown-menu">
                <li><a href="#">Action</a></li>
                <li><a href="#">Another action</a></li>
                <li><a href="#">Something else here</a></li>
                <li role="separator" class="divider"></li>
                <li><a href="#">Separated link</a></li>
                <li role="separator" class="divider"></li>
                <li><a href="#">One more separated link</a></li>
              </ul>
            </li>
          </ul>

        </div>
        <!-- /.navbar-collapse -->
      </div>
      <!-- /.container-fluid -->
    </nav>
  </div>
</div>