IE9 と Chrome のレンダリング html の違いに問題があります。.js と .css のすべての URL を確認しましたが、問題ありません。すべてのファイルは公式サイトからダウンロードされました。
この写真はIE9のものです
この写真はChromeからのものです
これは私のコードです
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="description" content="" />
<meta name="author" content="" />
<link rel="shortcut icon" href="public/assets/ico/favicon.png" />
<title>SMG</title>
<!-- Bootstrap core CSS -->
<link href="public/dist/css/bootstrap.css" media="all" rel="stylesheet" type="text/css" />
<link href="public/dist/css/bootstrap-select.min.css" rel="stylesheet" />
<!-- Custom styles for this template -->
<link href="navbar.css" rel="stylesheet" />
<!-- HTML5 shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="public/assets/js/html5shiv.js"></script>
<script src="public/assets/js/respond.min.js"></script>
<![endif]-->
</head>
<body>
<div class="container">
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand " href="#">SMG</a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
</ul>
<form class="navbar-form navbar-right">
<div class="form-group">
<input type="text" id="dni" data-container=".form-group" data-toggle="popover" data-content="" data-placement="bottom" placeholder="Numero" class="form-control">
</div>
<div class="form-group">
<input type="password" id="password" data-container=".form-group" data-toggle="popover" data-placement="bottom" data-content="Ingrese su Contraseña" placeholder="Password" class="form-control">
</div>
<div class="form-group">
<select class="selectpicker" data-width="200px" title="Tipo de Documentacion" data-style="btn-inverse">
<option data-hidden="true"></option>
<option value="DU">DNI</option>
<option value="LC">LC</option>
<option value="LE">LE</option>
<option value="PA">PA</option>
</select>
</div>
<div class="form-group">
<button type="submit" id="signIn" onsubmit="return false;" class="btn btn-success btn-xs">Ingresar</button>
<button type="submit" id="signIn" onsubmit="return false;" class="btn btn-danger btn-xs">Registrarse</button>
</div>
</form>
</div><!--/.navbar-collapse -->
</div>
</div>
<br/>
<div class="alert alert-block alert-danger " style="display: none">
<button type="button" class="close" aria-hidden="true">×</button>
<h4></h4>
</div>
<div class="jumbotron">
<div class="container">
<h1>Hello, world!</h1>
<p>This is a template for a simple marketing or informational website. It includes a large callout called the hero unit and three supporting pieces of content. Use it as a starting point to create something more unique.</p>
<p><a class="btn btn-primary btn-lg">Learn more »</a></p>
</div>
</div>
</div> <!-- /container -->
<script src="public/js/jquery.js"></script>
<script src="public/dist/js/bootstrap.min.js"></script>
<script src="public/js/bootstrap-select.min.js"></script>
</body>
</html>
理由がわからない。誰か手を貸してくれませんか?ありがとうございました!