Twitter Bootstrap：无法使网站对较小的设备做出响应

Question

I am developing a project for school and I am pretty new to Bootstrap and I keep having some problems with scaling the website for different resolutions.我正在为学校开发一个项目，我对 Bootstrap 还很陌生，我在为不同的分辨率缩放网站时一直遇到一些问题。 When I change it to mobile the images go on top of the text.当我将其更改为移动设备时，图像位于文本之上。 If anybody could help me I would appreciate it.如果有人可以帮助我，我将不胜感激。 I have tried everything and still cant find a solution.我已经尝试了一切，但仍然找不到解决方案。

<body>
  
<div class="container">
    
<nav class="navbar-fixed-top sticky-top navbar" style="width: 100%; background-color: white; box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);"> 
    
    <div class="navbar-header">
    
        <a class="navbar-brand"><img src="transferir.png" alt="" style="height: 65; width: 60px"></a>
        
    </div> 
    
    <div>
        <ul id="menu">
            <li><a href="#home">Home</a></li>
            <li><a href="#sobre">About</a></li>
            <li><a href="#features">Features</a></li>
            <li><a href="#contact">Contacta-nos</a></li>
        </ul>    
    </div>
        
</nav>


    
<div class="site-index">
    
    <div id="home" class="block home-block">
        <div class="container">
            <div class="col-sm-6  left-block">
                <div class="text-centered">
                    <h1>Texter</h1>
                    <p class="info-text">Send text messages, voice messages, video messages or video call with all your friends and family easily, quickly and securely.</p>
                    
                    <p class="Medium-text">Download Em Breve</p>
                    <a href="https://play.google.com/?hl=pt-PT" target="_blank"><img src="playstore.png" alt="Playstore" class="d-img"></a>
                    <a href="https://www.apple.com/pt/ios/app-store/" target="_blank"><img src="appstore.png" alt="Apple App Store" class="d-img"></a>
                </div>
            </div>
            <div class="col-sm-5  right-block">
                <img src="phones.png" style="height: 350px; float: right; vertical-align: middle; width: auto !important; position: relative">            
            </div>   
        </div>
        <hr class="sombra">
    </div>
</div>

Css css

html{
   scroll-behavior: smooth;
}

body{
    padding-top: 1%;
    font-family: 'Lato', sans-serif;
}

.block{
    padding: 35px;
}

.home-block{
    min-height: calc(100vh - 90px);
}

#home .container{
    height: 500px;  
}

.left-block{
    text-align: center;
    top: 30%;     
}

.right-block{
    bottom: 35%;
    margin-left: 25%;
}

.container{
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

Desktop桌面

When i squish the page当我挤压页面时

Answer 1

You can use您可以使用

<head>
 <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
</head>

See this and this看到这个和这个

Answer 2

First of all, you probably forgot to include <div class="row"></div> wrapper inside your <div class="container">...</div> element, just as it says here .首先，您可能忘记在<div class="container">...</div>元素中包含<div class="row"></div>包装器，就像这里所说的那样。

Secondly, I strongly recommend you to not play too much with CSS properties such as position: relative / absolute , top: ...; left: ...; right: ...; bottom: ...其次，我强烈建议您不要过多地使用 CSS 属性，例如position: relative / absolute 、 top: ...; left: ...; right: ...; bottom: ... top: ...; left: ...; right: ...; bottom: ... top: ...; left: ...; right: ...; bottom: ... , because most of them break the CSS native document flow and they should be used only when other tools do not help much. top: ...; left: ...; right: ...; bottom: ... ，因为它们中的大多数破坏了 CSS 原生文档流，只有在其他工具没有多大帮助时才应该使用它们。

I suggest you reading this series of articles if you have enough time: CSS layout如果你有足够的时间，我建议你阅读这一系列文章： CSS 布局

I turned off most of the properties of that kind and it already looks much nicer:我关闭了大多数此类属性，它看起来已经好多了：

This answer would be just be a massive advice if I wouldn't provide some code help, so here it is.如果我不提供一些代码帮助，这个答案将只是一个巨大的建议，所以就在这里。

Start by disabling these properties in DevTools:首先在 DevTools 中禁用这些属性：

.home-block{
    /* min-height: calc(100vh - 90px); */
}

#home .container{
    /* height: 500px; */
}

.left-block{
    /* text-align: center; */
    /* top: 30%; */
}

.right-block{
    /* bottom: 35%; */
    /* margin-left: 25%; */
}

Fixing Bootstrap markup:修复 Bootstrap 标记：

<div id="home" class="block home-block">
    <div class="container">
        <!-- Added this wrapper, changed .col-* classes to responsive -->
        <div class="row">
            <!-- Removed .left-block class -->
            <div class="col-sm-12 col-lg-6  left-block">
                <div class="text-centered">
                    <h1>Texter</h1>
                    <p class="info-text">Send text messages, voice messages, video messages or video call with all your friends and family easily, quickly and securely.</p>
                    <p class="Medium-text">Download Em Breve</p>
                    <a href="https://play.google.com/?hl=pt-PT" target="_blank"><img src="playstore.png" alt="Playstore" style="height: 40px;"></a>
                    <a href="https://www.apple.com/pt/ios/app-store/" target="_blank"><img src="appstore.png" alt="Apple App Store" style="height: 40px"></a>
                </div>
            </div>
            <!-- Removed .right-block class, added .text-centered class -->
            <div class="col-sm-12 col-lg-6 text-centered">
                <!-- Removed inline styles (bad practice), changed "height" to be an attribute -->
                <img src="phones.png" height="350">            
            </div>
        </div>
    </div>
</div>

Then you would get this picture (no interval between image and the button on the top):然后你会得到这张图片（图片和顶部按钮之间没有间隔）：

This one is solved by applying margin-top: ...px;这个是通过应用margin-top: ...px;解决的margin-top: ...px; to the image block, wrapped in @media query at .col-md-* resolutions and lower.到图像块，以.col-md-*分辨率和更低的分辨率包装在@media查询中。 For the exact values see Bootstrap grid options .有关确切值，请参阅Bootstrap 网格选项。 For more info on applying @media queries see MDN docs有关应用@media查询的更多信息，请参阅MDN 文档

As for navigation bar, I first suggest you disabling padding-left on ul#menu element:至于导航栏，我首先建议您在ul#menu元素上禁用padding-left ：

#menu {
    padding-left: 0;
}

Although it fixes it on sm resolutions, the navigation menu still wraps under the logo on resolutions less than about 520px .尽管它在sm分辨率下修复了它，但导航菜单仍然在分辨率小于520px包裹在徽标下。 I suggest you imagine what to do with this occasion in your mind or in some markup service like https://app.diagrams.net/ and then develop what you decided to.我建议您在脑海中或在诸如https://app.diagrams.net/ 之类的标记服务中想象如何处理这种情况，然后开发您决定的内容。

Twitter Bootstrap：无法使网站对较小的设备做出响应

问题描述

2 个解决方案

解决方案1
1 2020-09-26 16:56:27

解决方案2
1 已采纳 2020-09-26 18:22:24

Twitter Bootstrap：无法使网站对较小的设备做出响应

问题描述

2 个解决方案

解决方案1 1 2020-09-26 16:56:27

解决方案2 1 已采纳 2020-09-26 18:22:24

解决方案1
1 2020-09-26 16:56:27

解决方案2
1 已采纳 2020-09-26 18:22:24