Question

在设计页面时，我在管理div的大小时遇到了一些困难。

CSS

body
{
overflow:auto;
min-height:100%;
height:auto;

}
#wrapper
{
height:100%;
width:100%
}
#header
{
width:100%;
height:20%;
background-color:red;
}
#center_content
{
min-height:79%;
height:auto;
background-color:pink;

}
#footer
{
height:20%;
background-color:blue;  
}
#left
{
float:left;
min-height:79%;
height:auto;
width:20%;
background-color:brown;
}

我的HTML

<html>
<head>
<link rel="stylesheet" type="text/css" href="style.css"/>
</head>
<body>
<div id="wrapper">
    <div id="header">this is my header
    </div>
    <div id="center_content">
        <div id="left">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.

It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors now use Lorem Ipsum as their default model text, and a search for 'lorem ipsum' will uncover many web sites still in their infancy. Various versions have evolved over the years, sometimes by accident, sometimes on purpose (injected humour and the like).


Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.

The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham.</div>
        <div id="right"></div>
    </div>
    <div id="footer">this is my footer
    </div>
</div>
</body>
</html>

如果你在浏览器上运行它，你可以看到<div id="left">正在离开页面，溢出页脚和正文。我的文字可能会有所不同。那么我需要在css中给出什么？请帮助

Answer 1

将overflow:auto添加到#center_content

#center_content {
    min-height:79%;
    height:auto;
    background-color:pink;
    overflow:auto;
}

<强> jsFiddle example

由于你浮动了侧边栏，你需要将溢出添加到它的父级以包含它。

Answer 2

您可以尝试使用此代码，

JSFIDDLE

只需添加此代码

即可

#center_content {
    float:left;
    height:100%;
    background-color:pink;
}

中心div离开父页面

2 个答案: