Bootstrap 背景无响应

Question

我制作的着陆页中的 Bootstrap 有问题...

我有以下代码

<!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">
    <meta name="description" content="">
    <meta name="author" content="">

    <title>Landing page Title</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
    <!-- Bootstrap Core CSS -->



    <link href="http://fonts.googleapis.com/css?family=Lato:300,400,700,300italic,400italic,700italic" rel="stylesheet" type="text/css">

    <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
        <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
        <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
    <![endif]-->
<style>

/* CSS used here will be applied after bootstrap.css */

body { 
 background: url('assets/img/4777.jpg') no-repeat center center fixed; 
 -webkit-background-size: cover;
 -moz-background-size: cover;
 -o-background-size: cover;
 background-size: cover;
 background-color: #851;  /* This color is for you to see the android problem. */
}

.panel-default {
 opacity: 0.95;
 margin-top:50px;

}
.form-group.last {
 margin-bottom:0px;
}



    </style>
</head>

<body>

<div class="container">
    <div class="row">
        <div class="col-md-4 col-md-offset-4">
            <div class="panel panel-default">
                <div class="panel-heading"> <strong class="">Σύνδεση στην πλατφόρμα Εργαστηρίων</strong>

                </div>
                <div class="panel-body">
                    <form class="form-horizontal" role="form">
                        <div class="form-group">
                            <label for="onoma-xristi" class="col-sm-3 control-label">Όνομα Χρήστη</label>
                            <div class="col-sm-9">
                                <input type="text" class="form-control" id="onoma-xristi" placeholder="" required="">
                            </div>
                        </div>
                        <div class="form-group">
                            <label for="kwdikos-xristi" class="col-sm-3 control-label">Κωδικός</label>
                            <div class="col-sm-9">
                                <input type="password" class="form-control" id="kwdikos-xristi" placeholder="" required="">
                            </div>
                        </div>
                        <div class="form-group">
                            <div class="col-sm-offset-3 col-sm-9">
                                <div class="checkbox">
                                    <label class="">
                                        <input type="checkbox" class="">Να με θυμάσαι</label>
                                </div>
                            </div>
                        </div>
                        <div class="form-group last">
                            <div class="col-sm-offset-3 col-sm-9">
                                <button type="submit" class="btn btn-success btn-sm">Σύνδεση</button>

                            </div>
                        </div>
                    </form>
                </div>

                </div>
            </div>
        </div>
    </div>
</div>




 <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>


</body>

</html>

当我将它加载到我的浏览器时，它播放完美，但我将 window 变小等等。但是当我从我的三星 galaxy s5 mini 加载它时后台没有响应。它在中间切割背景，并在页面的下半部分显示白色。

更新 1

此问题仅在 android 具有 Chrome 的智能手机或互联网应用程序中检测到。

当有人尝试使用 iPhone 时，它播放完美！

这是网站

http://79.170.44.145/irem.co.vu/test-ptx/index.html

来自 ANDROID 的图片就是这些。 iOS iPHONE

ANDROID CHROME 浏览器和互联网也

有什么建议吗？

Answer 1

如果您希望背景图片根据浏览器的大小进行缩放window:

background-image:url('assets/img/4777.jpg');
background-repeat:no-repeat;
background-size:contain;
background-position:center;

Answer 2

请试试这个：

html{
  height:100%;
  min-height:100%;
}
body{
  min-height:100%;
}

我发现了一篇文章，它听起来与您遇到的问题相同。看看 here.

Bootstrap 背景无响应

Background no responsive on Bootstrap

html

css

responsive-design

responsive-images