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What is the relationship between the div floating layer and the default div layer?

php中世界最好的语言Original: 2017-11-22 17:45:542018browse

Speaking of FloatingFirst of all, we need to understand a concept, why do we set the floating style? Because I want the DIVObject box to be laid out left or right. In this way, our web pages can be more beautiful and interactive. So what is the difference between floating DIV and default DIV? Let’s take a look at

What is the difference between div floating layer and div layer? What is the relationship in css

First of all, DIV floating layer and DIV layer both refer to DIV layout. Generally, CSS style sheets are used to add DIV tag combinations are used to lay out web pages.

The div layer generally includes a div floating layer. The div floating layer indicates that the div is added to the css floating style, so it is called a div floating layer. Without the float floating style, it does not have a floating effect, so If no floating style is added to the div, it is not called a floating layer. Of course, tags such as span, h1, ul, and li are also layers, but tags such as span, h1, ul, and li are not used as frequently as div, so div is generally used as a symbolic name.

Next, let me tell you what is a general layer and what is a floating layer? Why use div css floating layer.

The complete DIV+CSS example HTML code is as follows

<!DOCTYPE html> 
<html> 
<head> 
<meta charset="utf-8" /> 
<title>div层与浮动层</title> 
<style> 
.div{ width:400px; height:100px} 
.div-a{ float:left; border:1px solid #F00; width:100px; height:80px} 
.div-b{ float:right; border:1px solid #00F; width:100px; height:80px} 
</style> 
</head> 
<body> 
<div class="div"> 
<div class="div-a"></div> 
<div class="div-b"></div> 
</div> 
</body> 
</html>

The object ".div" is not set to float, ".div-a" is set to float to the left (float:left), ".div- b" is set to float to the right (float:right).

Summary of layers and floating layers

In the above example, the ".div" object is a normal layer, and the default is a layer without floating effect, because the content of the web page is on the left. You can see that this layer is on the left. It is actually a DIV box layer without floating style. The children ".div-a" and ".div-b" within the object are set to float, so they become floating layers. As can be seen from the above, one floats to the left and the other floats to the right in the ".div" box. . The difference between a normal layer and a floating layer is whether the CSS float style is set.

The differences in floating have been introduced to you very clearly. For more exciting information, please pay attention to the php Chinese websiteOther related articles!

What is the relationship between the div floating layer and the default div layer?

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