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How to clear float in css

Source: Internet
Author: User
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The code is as follows: Copy code
<Style>
. Container {
Border: 3px solid #000;
Width: 600px;
Background-color: # eee;
Margin-bottom: 50px;
            }
           
. Floatedbox {
Float: left;
Border: 3px solid # bbb;
Width: 125px;
Height: 125px;
Background-color: # fff;
Margin-right: 1em;
Padding: 0 10px;
            }
</Style>
</Head>
<Body>
<Div class = "container">
<Div class = "floatedbox">
<P>
Floated box
</P>
</Div>
<H3> Container 1 <P>
(<Em> without </em>
Easy clearing)
</P>
</Div>
</Body>
</Html>


I checked it online. This is a famous floating problem. What we need to do is to clear the floating effect.
Solution
There are many solutions on the Internet, but they are generally in these three categories:
Add the div element containing the clear: both style definition to the outer layer of the floating div.
Using overflow: auto, but this is a legend that may have a very good effect.
Use the after pseudo element for processing, and use hack for IE
First, the second type. Since there are some cups in the legend, I certainly don't need them. The first one is that people like me who have html-like cleanup will certainly not use it. Adding a div tag for no reason makes me feel awkward.
Therefore, we will color the after pseudo element for processing. The specific code after processing is as follows:

The code is as follows: Copy code

 

<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8">
<Title> easy floating clear </title>
<Style>
. Container {
Border: 3px solid #000;
Width: 600px;
Background-color: # eee;
Margin-bottom: 50px;
            }
           
. Floatedbox {
Float: left;
Border: 3px solid # bbb;
Width: 125px;
Height: 125px;
Background-color: # fff;
Margin-right: 1em;
Padding: 0 10px;
            }
           
. Clearfix: after {
Content :".";
Display: block;
Height: 0;
Clear: both;
Visibility: hidden;
            }
           
* Html. clearfix {height: 1% ;}
</Style>
</Head>
<Body>
<Div class = "container">
<Div class = "floatedbox">
<P>
Floated box
</P>
</Div>
<H3> Container 1 <P>
(<Em> without </em>
Easy clearing)
</P>
</Div>

<Div class = "container">
<Div class = "floatedbox">
<P>
Floated box
</P>
</Div>
<H3> Container 1 <P>
(<Em> without </em>
Easy clearing)
</P>
<Div style = "clear: both;"> </div>
</Div>
   
<Div class = "clearfix container">
<Div class = "floatedbox">
<P>
Floated box
</P>
</Div>
<H3> Container 1 <P>
(<Em> without </em>
Easy clearing)
</P>
</Div>
</Body>
</Html>

Solve the problem. Some people on the Internet say that adding a "dot" behind the div tag is uncomfortable, and visibility should be used to hide it. We recommend that you use the following code instead:

The code is as follows: Copy code

. Clearfix: after {content: ""; display: block; height: 0; clear: both ;}

In this way, our problem is solved.

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