div的格式（响应式）答案

【问题标题】：formatting of the divs(responsive)div的格式（响应式）
【发布时间】：2015-06-17 13:12:43
【问题描述】：

<!DOCTYPE html>
<html lang="en-US">
<head>
    <title>Responsive</title>
    <style>
        .city {
            float: left;
            margin: 5px;
            padding: 15px;
            width: 100%;
            height: 300px;
            border: 1px solid black;
        }

        .city2 {
            float: left;
            margin: 5px;
            padding: 15px;
            width: 100%;
            height: 100px;
            border: 1px solid red;
        }
    </style>
</head>
<body background="page-bg.jpg">

    <h1>W3Schools Demo</h1>
    <h2>Resize this responsive page!</h2>

    <div style="width:100%">
        <div style="width:21%;" >
            <div class="city2">
                <h2>London</h2>
                <p>London is the capital city of England.</p>

            </div>
        </div>
        <div style="width:21%;float:left;">
            <div class="city2">
                <h2>Paris</h2>

            </div>
        </div>
        <div style="width:21%;">
            <div class="city2">
                <h2>Tokyo</h2>

            </div>
        </div>


        <div style="width:21%;">
            <div class="city2">
                <h2>Istanbul</h2>

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





    <div style="width:100%">

        <div style="width:33.3%">
            <div class="city">
                <h2>London</h2>
                <p>London is the capital city of England.</p>
                <p>It is the most populous city in the United Kingdom, with a metropolitan area of over 13 million inhabitants.</p>
            </div>

        </div>

        <div style="width:33.3%">
            <div class="city">
                <h2>Paris</h2>
                <p>Paris is the capital and most populous city of France.</p>
            </div>
        </div>

        <div style="width:33.3%">
            <div class="city">
                <h2>Tokyo</h2>
                <p>Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the most populous metropolitan area in the world.</p>
            </div>
        </div>
    </div>
</body>
</html>

上面是我的代码，它在第 1 行有 4 个 div，在第 2 行有 3 个 div。我试图让 div 响应。为此，代码中提到了 city,city2 的 css。呈现代码时，前四个 div 不是直线。另外，当我调整窗口大小时，排列是响应式的，但是这 4 个 div 前面有空白。请帮助我如何让它们响应并占据屏幕的各个维度。

【问题讨论】：

标签： html css responsive-design

【解决方案1】：

我想你想要这样的东西，希望对你有帮助。

        .city {
            float: left;
            margin: 5px;
            padding: 15px;
            width: 100%;
            height: 300px;
            border: 1px solid black;
            box-sizing:border-box;
        }

        .city2 {
            float: left;
            margin: 5px;
            padding: 15px;
            width: 100%;
            min-height: 120px;
            border: 1px solid red;
            box-sizing:border-box;

        }

    <h1>W3Schools Demo</h1>
    <h2>Resize this responsive page!</h2>

    <div >
        <div style="width:21%;float:left;margin-right: 10px;">
            <div class="city2">
                <h2>London</h2>
                <p>London is the capital city of England.</p>

            </div>
        </div>
        <div style="width:21%;float:left;margin-right: 10px;">
            <div class="city2">
                <h2>Paris</h2>
                <p>London is the capital city of England.</p>

            </div>
        </div>
        <div style="width:21%;float:left;margin-right: 10px;">
            <div class="city2">
                <h2>Tokyo</h2>
                <p>London is the capital city of England.</p>

            </div>
        </div>


        <div style="width:21%;float:left;margin-right: 10px;">
            <div class="city2">
                <h2>Istanbul</h2>
				<p>London is the capital city of England.</p>
            </div>
        </div>
    </div>





    <div>

        <div style="width:32%;float:left;margin-right:8px">
            <div class="city">
                <h2>London</h2>
                <p>London is the capital city of England.</p>
                <p>It is the most populous city in the United Kingdom, with a metropolitan area of over 13 million inhabitants.</p>
            </div>

        </div>

        <div style="width:32%;float:left;margin-right:8px">
            <div class="city">
                <h2>Paris</h2>
                <p>Paris is the capital and most populous city of France.</p>
            </div>
        </div>

		<div style="width:32%;float:left;">
            <div class="city">
                <h2>Tokyo</h2>
                <p>Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the most populous metropolitan area in the world.</p>
            </div>
        </div>
    </div>

【讨论】：

感谢您的回复。这对我有一点帮助。请查看我的编辑（添加了新图片）。

【解决方案2】：

简单的改进，希望能帮助你开始并且你会改进这个例子:)

*{
	box-sizing:border-box;
	margin:0;
	padding:0;
}
body{
	background-image: url("page-bg.jpg");
	font-size:80%;
	max-width:1200px;
	margin:0 auto;
}
h1, h2{
	padding:5px;
}
.row1{
	width:100%;
}
.one{
	width:21%;
	min-width:300px;
	float:left;
	padding:5px;
	margin:0 auto;
}
.inside {
    float: left;
    padding:5px;
    width:100%;
    min-height:120px;
    border: 1px solid red;
}
.row2{
	width:100%;
	clear:both;
}
.two{
	width:33%;
	min-width:400px;
	float:left;
	padding:5px;
	margin:0 auto;
}
.city {
	float: left;
    padding: 15px;
    width: 100%;
    min-height: 300px;
    border: 1px solid black;
}

<!DOCTYPE html>
<html lang="en-US">
<head>
    <title>Responsive</title>
    <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>

    <h1>Demo</h1>
    <h2>Responsive page</h2>

    <div class="row1">
        <div class="one">
            <div class="inside">
                <h2>London</h2>
                <p>London is the capital city of England.</p>
            </div>
        </div>
        <div class="one">
            <div class="inside">
                <h2>Paris</h2>
            </div>
        </div>
        <div class="one">
            <div class="inside">
                <h2>Tokyo</h2>
            </div>
        </div>
        <div class="one">
            <div class="inside">
                <h2>Istanbul</h2>
            </div>
        </div>
    </div>


    <div class="row2">
        <div class="two">
            <div class="city">
                <h2>London</h2>
                <p>London is the capital city of England.</p>
                <p>It is the most populous city in the United Kingdom, with a metropolitan area of over 13 million inhabitants.</p>
            </div>
        </div>
        <div class="two">
            <div class="city">
                <h2>Paris</h2>
                <p>Paris is the capital and most populous city of France.</p>
            </div>
        </div>
        <div class="two">
            <div class="city">
                <h2>Tokyo</h2>
                <p>Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the most populous metropolitan area in the world.</p>
            </div>
        </div>
    </div>
</body>
</html>

【讨论】：

好的，你只需要为.one类更改一件事：删除width:21%并粘贴width:100%。多余的空间现在被 div 占据了。