Question

看来我把所有东西都放在了正确的位置。

在头脑中。没有视口元标记（我试过但没有运气）

<title>My Title for Webpage</title>

<link href="css/bootstrap.min.css" rel="stylesheet" />

位于结束标记正上方

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <script src="js/bootstrap.min.js"></script>
</body>

这是导航栏html

<div class="navbar navbar-default navbar-fixed-top" style="border: 1px solid red;
    padding-left: 20px; padding-right: 30px;">
    <div class="navbar-header">
        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
            <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="#"><span class="title">Portland Dancing</span></a>
    </div>
    <div class="navbar-collapse collapse" style="max-height: 100%;">
        <ul class="nav navbar-nav navbar-left">
            <li>
                <asp:DropDownList ID="ddlChoose" runat="server" AutoPostBack="true" CssClass="form-control"
                    EnableViewState="false" DataTextField="DanceStyle" DataValueField="DanceStyle">
                </asp:DropDownList>
            </li>
            <li>
                <asp:DropDownList ID="ddlChooseDateRanges" runat="Server" AutoPostBack="true" CssClass="form-control"
                    OnSelectedIndexChanged="DateRangePullDownHandler" EnableViewState="false">
                    <asp:ListItem Value="All Days">All Days</asp:ListItem>
                    <asp:ListItem Value="Christmas">Christmas</asp:ListItem>
                    <asp:ListItem Value="New Years Eve">New Year's Eve</asp:ListItem>
                    <asp:ListItem Value="Today">Today</asp:ListItem>
                    <asp:ListItem Value="Tomorrow">Tomorrow</asp:ListItem>
                    <asp:ListItem Value="Today Tomorrow">Today Tomorrow</asp:ListItem>
                    <asp:ListItem Value="This Weekend">This Weekend</asp:ListItem>
                    <asp:ListItem Value="Next Weekend">Next Weekend</asp:ListItem>
                    <asp:ListItem Value="This Week">This Week</asp:ListItem>
                    <asp:ListItem Value="Fridays">Fridays</asp:ListItem>
                    <asp:ListItem Value="Saturdays">Saturdays</asp:ListItem>
                    <asp:ListItem Value="Sundays">Sundays</asp:ListItem>
                    <asp:ListItem Value="Mondays">Mondays</asp:ListItem>
                    <asp:ListItem Value="Tuesdays">Tuesdays</asp:ListItem>
                    <asp:ListItem Value="Wednesdays">Wednesdays</asp:ListItem>
                    <asp:ListItem Value="Thursdays">Thursdays</asp:ListItem>
                    <asp:ListItem Value="Before 1pm">Before 1pm</asp:ListItem>
                    <asp:ListItem Value="Before 3pm">Before 3pm</asp:ListItem>
                    <asp:ListItem Value="Before 6pm">Before 6pm</asp:ListItem>
                    <asp:ListItem Value="Before 9pm">Before 9pm</asp:ListItem>
                </asp:DropDownList>
            </li>
        </ul>
        <ul class="nav navbar-nav navbar-right">
            <li>
                <asp:LinkButton ID="lnkPrint" Style="margin-bottom: 5px; padding: 6px 0px;" CssClass="form-control"
                    CausesValidation="False" BackColor="#f6f2dc" ForeColor="Black" runat="server"
                    EnableViewState="false" title="Make your choices with the checkboxes and then Print them">Print</asp:LinkButton>
            </li>
            <li>
                <asp:LinkButton ID="lnkEmail" Style="margin-bottom: 5px; padding: 6px 0px;" CssClass="form-control"
                    runat="server" CausesValidation="False" BackColor="#f6f2dc" ForeColor="Black"
                    EnableViewState="false" title="Make your choices with the checkboxes and then Email them">
            Email
                </asp:LinkButton></li>
            <li>
                <asp:DropDownList ID="ddlAgesPrice" runat="Server" AutoPostBack="true" OnSelectedIndexChanged="AgesPricePulldownHandler"
                    CssClass="form-control" EnableViewState="false" Style="text-align: center;">
                    <asp:ListItem Value="Ages, Price" Enabled="false">(Ages, Price)</asp:ListItem>
                    <asp:ListItem Value="All, All">All, All</asp:ListItem>
                    <asp:ListItem Value="All, Free">All, Free</asp:ListItem>
                    <asp:ListItem Value="Under 21, All">Under 21, All</asp:ListItem>
                    <asp:ListItem Value="Under 21, Free">Under 21, Free</asp:ListItem>
                    <asp:ListItem Value="Over 50, All">Over 50, All</asp:ListItem>
                    <asp:ListItem Value="Over 50, Free">Over 50, Free</asp:ListItem>
                </asp:DropDownList>
            </li>
            <li>
                <asp:CheckBox ID="chkInflate" CssClass="form-control" EnableViewState="True" AutoPostBack="True"
                    BackColor="#f6f2dc" ForeColor="Black" Style="margin-bottom: 5px;" runat="Server"
                    ToolTip="Check/Uncheck the box to have all the names expand with more info on this web page. Or go over and click on an event name to pop up a whole bunch of information.">
                </asp:CheckBox></li>
            <li>
            <a href="emailus.aspx" class="form-control" style="color: black; background-color: #f6f2dc; margin-bottom: 7px; font-size: 14px; padding: 6px 0px;" target="_blank" title="Do you have a dance to list? Problem with a listing? Advice for us? Click here to email us. Classes and workshops are in a different area: Learn Stuff">
                Contact</a>
             </li>
            <li>
            <a href="learn.aspx" target="_blank" class="form-control" style="font-weight: bold;
                margin-bottom: 7px; color: Red; background-color: #f6f2dc; font-size: 14px; padding: 6px 0px;"
                title="You must click here to see the Lessons, Worksops, and Gatherings, Private Lessons.">
                Lessons</a>
            </li>
        </ul>
    </div>
</div>

以下是使用Chrome开发者工具在iphone 5上的样子。这在我的iphone6plus上是一样的。它应该折叠并在右侧显示切换按钮：

这是使用Chrome开发者工具的常规浏览器尺寸（笔记本电脑）。按设计：

有趣的是让我感到困惑的是，我可以通过拖动窗口的右侧缩小我的Chrome浏览器窗口，并显示切换按钮并正常工作。它有点表明我做的非常正确。。。直到我试用我的iPhone6plus

我也折叠了我的li标签并进行了一次屏幕打印，以便更好地看待事情：

Answer 1

正如我的评论中所述，将<meta name="viewport" content="width=device-width, initial-scale=1.0">添加到head部分可以解决您的问题。您可以阅读有关视口here的更多信息，但外卖是：

width = device-width部分设置要遵循的页面宽度   设备的屏幕宽度（根据设备的不同而不同）。

initial-scale = 1.0部分设置页面的初始缩放级别   首先由浏览器加载。

所以，这让手机知道不会挤压你的网页，而且它的设计考虑了移动扩展：）

Answer 2

我猜你错过了这个<meta name="viewport" content="width=device-width, initial-scale=1">

 
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
  <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

<div class="navbar navbar-default navbar-fixed-top" style="border: 1px solid red;
    padding-left: 20px; padding-right: 30px;">
    <div class="navbar-header">
        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
            <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="#"><span class="title">Portland Dancing</span></a>
    </div>
    <div class="navbar-collapse collapse" style="max-height: 100%;">
        <ul class="nav navbar-nav navbar-left">
            <li>
                <asp:DropDownList ID="ddlChoose" runat="server" AutoPostBack="true" CssClass="form-control"
                    EnableViewState="false" DataTextField="DanceStyle" DataValueField="DanceStyle">
                </asp:DropDownList>
            </li>
            <li>
                <asp:DropDownList ID="ddlChooseDateRanges" runat="Server" AutoPostBack="true" CssClass="form-control"
                    OnSelectedIndexChanged="DateRangePullDownHandler" EnableViewState="false">
                    <asp:ListItem Value="All Days">All Days</asp:ListItem>
                    <asp:ListItem Value="Christmas">Christmas</asp:ListItem>
                    <asp:ListItem Value="New Years Eve">New Year's Eve</asp:ListItem>
                    <asp:ListItem Value="Today">Today</asp:ListItem>
                    <asp:ListItem Value="Tomorrow">Tomorrow</asp:ListItem>
                    <asp:ListItem Value="Today Tomorrow">Today Tomorrow</asp:ListItem>
                    <asp:ListItem Value="This Weekend">This Weekend</asp:ListItem>
                    <asp:ListItem Value="Next Weekend">Next Weekend</asp:ListItem>
                    <asp:ListItem Value="This Week">This Week</asp:ListItem>
                    <asp:ListItem Value="Fridays">Fridays</asp:ListItem>
                    <asp:ListItem Value="Saturdays">Saturdays</asp:ListItem>
                    <asp:ListItem Value="Sundays">Sundays</asp:ListItem>
                    <asp:ListItem Value="Mondays">Mondays</asp:ListItem>
                    <asp:ListItem Value="Tuesdays">Tuesdays</asp:ListItem>
                    <asp:ListItem Value="Wednesdays">Wednesdays</asp:ListItem>
                    <asp:ListItem Value="Thursdays">Thursdays</asp:ListItem>
                    <asp:ListItem Value="Before 1pm">Before 1pm</asp:ListItem>
                    <asp:ListItem Value="Before 3pm">Before 3pm</asp:ListItem>
                    <asp:ListItem Value="Before 6pm">Before 6pm</asp:ListItem>
                    <asp:ListItem Value="Before 9pm">Before 9pm</asp:ListItem>
                </asp:DropDownList>
            </li>
        </ul>
        <ul class="nav navbar-nav navbar-right">
            <li>
                <asp:LinkButton ID="lnkPrint" Style="margin-bottom: 5px; padding: 6px 0px;" CssClass="form-control"
                    CausesValidation="False" BackColor="#f6f2dc" ForeColor="Black" runat="server"
                    EnableViewState="false" title="Make your choices with the checkboxes and then Print them">Print</asp:LinkButton>
            </li>
            <li>
                <asp:LinkButton ID="lnkEmail" Style="margin-bottom: 5px; padding: 6px 0px;" CssClass="form-control"
                    runat="server" CausesValidation="False" BackColor="#f6f2dc" ForeColor="Black"
                    EnableViewState="false" title="Make your choices with the checkboxes and then Email them">
            Email
                </asp:LinkButton></li>
            <li>
                <asp:DropDownList ID="ddlAgesPrice" runat="Server" AutoPostBack="true" OnSelectedIndexChanged="AgesPricePulldownHandler"
                    CssClass="form-control" EnableViewState="false" Style="text-align: center;">
                    <asp:ListItem Value="Ages, Price" Enabled="false">(Ages, Price)</asp:ListItem>
                    <asp:ListItem Value="All, All">All, All</asp:ListItem>
                    <asp:ListItem Value="All, Free">All, Free</asp:ListItem>
                    <asp:ListItem Value="Under 21, All">Under 21, All</asp:ListItem>
                    <asp:ListItem Value="Under 21, Free">Under 21, Free</asp:ListItem>
                    <asp:ListItem Value="Over 50, All">Over 50, All</asp:ListItem>
                    <asp:ListItem Value="Over 50, Free">Over 50, Free</asp:ListItem>
                </asp:DropDownList>
            </li>
            <li>
                <asp:CheckBox ID="chkInflate" CssClass="form-control" EnableViewState="True" AutoPostBack="True"
                    BackColor="#f6f2dc" ForeColor="Black" Style="margin-bottom: 5px;" runat="Server"
                    ToolTip="Check/Uncheck the box to have all the names expand with more info on this web page. Or go over and click on an event name to pop up a whole bunch of information.">
                </asp:CheckBox></li>
            <li>
            <a href="emailus.aspx" class="form-control" style="color: black; background-color: #f6f2dc; margin-bottom: 7px; font-size: 14px; padding: 6px 0px;" target="_blank" title="Do you have a dance to list? Problem with a listing? Advice for us? Click here to email us. Classes and workshops are in a different area: Learn Stuff">
                Contact</a>
             </li>
            <li>
            <a href="learn.aspx" target="_blank" class="form-control" style="font-weight: bold;
                margin-bottom: 7px; color: Red; background-color: #f6f2dc; font-size: 14px; padding: 6px 0px;"
                title="You must click here to see the Lessons, Worksops, and Gatherings, Private Lessons.">
                Lessons</a>
            </li>
        </ul>
    </div>
</div>

Bootstrap Navbar不会在智能手机上崩溃

2 个答案: