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Use the float attribute of CSS to implement a secondary responsive page

不言Original: 2018-11-09 16:26:192879browse

This article introduces you to the use of CSS float attributes to implement secondary responsive pages. The content is very detailed and has certain reference value.

Without further ado, let’s go straight to the text~

We use the float: left attribute to implement a secondary responsive page (recommended course: CSS video tutorial)

The code is as follows:

LRColumnSimple.html

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
  <link rel="stylesheet" type="text/css" href="LRColumnSimple.css" />
<meta charset="utf-8" />
</head>
<body>
 <div class="Container">
    <div class="LeftColumn">说明文字</div>
    <div class="RightColumn"><img     style="max-width:90%" src="image/flower.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="LeftColumn"><img     style="max-width:90%" src="image/flowers.jpg"/ alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="RightColumn">说明文字</div>
    <div class="EndColumn"></div>
    <div class="LeftColumn">说明文字</div>
    <div class="RightColumn"><img     style="max-width:90%" src="image/fruit.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="LeftColumn"><img     style="max-width:90%" src="image/greatwall.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="RightColumn">说明文字</div>
    <div class="EndColumn"></div>
    <div class="LeftColumn">说明文字</div>
    <div class="RightColumn"><img     style="max-width:90%" src="image/1.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="LeftColumn"><img     style="max-width:90%" src="image/keiskei.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="RightColumn">说明文字</div>
    <div class="EndColumn"></div>
  </div>
  </body>
  </html>

LRColumnSimple.css

body {
  background-color:#C0C0C0;
}
.Container {
  background-color:#FFFFFF;  
  width:760px;  
  margin-left:auto;    
  margin-right:auto;
}
.LeftColumn {
 float:left;  
 width:360px;
}
.RightColumn {
  float:left;  
  width:360px;
}
.EndColumn {  
clear:left;
}

The effect on the browser is as follows:

Use the float attribute of CSS to implement a secondary responsive page

Supplement: Display the image in the middle of the frame

If you display the image in the middle of the frame, you need to set text-align: center for the image.

The code is as follows:

LRColumnSimpleImageCenter.html

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
  <link rel="stylesheet" type="text/css" href="LRColumnSimple.css" />
<meta charset="utf-8" />
</head>
<body>
  <div class="Container">
    <div class="LeftColumn">说明文字</div>
    <div class="RightColumn" style="text-align:center;"><img     style="max-width:90%" src="image/flower.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="LeftColumn" style="text-align:center;"><img     style="max-width:90%" src="image/flowers.jpg"/ alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="RightColumn">说明文字</div>
    <div class="EndColumn"></div>
    <div class="LeftColumn">说明文字</div>
    <div class="RightColumn" style="text-align:center;"><img     style="max-width:90%" src="image/fruit.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="LeftColumn" style="text-align:center;"><img     style="max-width:90%" src="image/greatwall.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="RightColumn">说明文字</div>
    <div class="EndColumn"></div>
    <div class="LeftColumn">说明文字</div>
    <div class="RightColumn" style="text-align:center;"><img     style="max-width:90%" src="image/1.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="LeftColumn" style="text-align:center;"><img     style="max-width:90%" src="image/keiskei.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="RightColumn">说明文字</div>
    <div class="EndColumn"></div>
  </div>
  </body>
  </html>

The effect is as follows: the image is displayed in the middle

Use the float attribute of CSS to implement a secondary responsive page

Responsive display on the page

LRColumnSimpleResponsiveW1.html

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
  <link rel="stylesheet" type="text/css" href="LRColumnSimpleResponsiveW1.css" />
<meta charset="utf-8" />
</head>
<body>
   <div class="Container">
    <div class="LeftColumn">说明文字</div>
    <div class="RightColumn" style="text-align:center;"><img     style="max-width:90%" src="image/flower.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="LeftColumn" style="text-align:center;"><img     style="max-width:90%" src="image/flowers.jpg"/ alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="RightColumn">说明文字</div>
    <div class="EndColumn"></div>
    <div class="LeftColumn">说明文字</div>
    <div class="RightColumn" style="text-align:center;"><img     style="max-width:90%" src="image/fruit.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="LeftColumn" style="text-align:center;"><img     style="max-width:90%" src="image/greatwall.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="RightColumn">说明文字</div>
    <div class="EndColumn"></div>
    <div class="LeftColumn">说明文字</div>
    <div class="RightColumn" style="text-align:center;"><img     style="max-width:90%" src="image/1.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="LeftColumn" style="text-align:center;"><img     style="max-width:90%" src="image/keiskei.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="RightColumn">说明文字</div>
    <div class="EndColumn"></div>
  </div>
  </body>
  </html>

LRColumnSimpleResponsiveW1.css

body {
  background-color:#C0C0C0;
}
.Container {
  background-color:#FFFFFF;  
  width:70%;  
  margin-left:auto;    
  margin-right:auto;
}
.LeftColumn {
  float:left;  
  width:360px;
}
.RightColumn {
  float:left;  
  width:360px;
}
.EndColumn {
  clear:left;
}

The effect is as follows:

Use the float attribute of CSS to implement a secondary responsive page

If you reduce the width here, it will change to something like the image below. It's left aligned with a float, but since the width is narrowed, it becomes a wrapped display. At this time, when the image is on the right border, the description text of the image is displayed on the image, and the description text on the left is displayed at the bottom of the image.

Use the float attribute of CSS to implement a secondary responsive page

Example of response:

In the previous HTML, there was the following problem: when the window width narrowed and the frame was collapsed, the description The position of the text cannot be a matter of same location. Let me introduce the code to avoid this phenomenon.

LRColumnSimpleResponsiveW2.html

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
  <link rel="stylesheet" type="text/css" href="LRColumnSimpleResponsiveW2.css" />
	<meta charset="utf-8" />
	</head>
	<body>
     <div class="Container">
    <div class="TextColumnA">说明文字</div>
    <div class="ImageColumnA" style="text-align:center;"><img     style="max-width:90%" src="image/flower.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>

    <div class="TextColumnB">说明文字</div>
    <div class="ImageColumnB" style="text-align:center;"><img     style="max-width:90%" src="image/flowers.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>

    <div class="TextColumnA">说明文字</div>
    <div class="ImageColumnA" style="text-align:center;"><img     style="max-width:90%" src="image/fruit.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>

    <div class="TextColumnB">说明文字</div>
    <div class="ImageColumnB" style="text-align:center;"><img     style="max-width:90%" src="image/greatwall.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="TextColumnA">说明文字</div>
    <div class="ImageColumnA" style="text-align:center;"><img     style="max-width:90%" src="image/1.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="TextColumnB">说明文字</div>
    <div class="ImageColumnB" style="text-align:center;"><img     style="max-width:90%" src="image/keiskei.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
  </div>
  </body>
  </html>

LRColumnSimpleResponsiveW2.css

body {
  background-color:#C0C0C0;
}
.Container {
  background-color:#FFFFFF;  
  width:70%;  
  margin-left:auto;    
  margin-right:auto;
}
.TextColumnA {
  float:left;  
  width:360px;
}
.ImageColumnA {
  float:left;  
  width:360px;  
  text-align:center;  
  margin-left:auto;  
  margin-right:auto;
}
.TextColumnB {
  float:right;  
  width:360px;
}
.ImageColumnB {
  float:right;  
  width:360px;  
  text-align:center;  
  margin-left:auto;  
  margin-right:auto;
}
.EndColumn {
  clear:both;
}

Description:

TextColumnA and ImageColumnA classes are used for descriptive text on the left, And the frame is used to display the image on the right. For these classes, float:left is specified, and the descriptive statements described earlier are on the left and the image is on the right. On the other hand, TextColumnB and ImageColumnB classes are used for descriptive text on the right side, while frames are used to display images on the left side. In these classes, float:right is specified, so the descriptive text described earlier will be placed on the right and the image will be placed on the left.

When the window width is narrowed, the previously described frame is first displayed in the float:left frame. Even in frames where float:right is specified, the placement of the descriptive statements described earlier is performed first, so the text describing the frame will be displayed above the image.

The effect is as follows:

Use the float attribute of CSS to implement a secondary responsive page

Reduce the width of the window. The frame will collapse, but the description text will appear evenly across the image.

Use the float attribute of CSS to implement a secondary responsive page

Let’s look at a practical example based on the previous code

LRColumnSimpleResponsive.html

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
  <link rel="stylesheet" type="text/css" href="LRColumnSimpleResponsive.css" />
<meta charset="utf-8" />
</head>
<body>
  <div class="Container">
    <div class="TextColumnA">说明文字</div>
    <div class="ImageColumnA" style="text-align:center;"><img  src="image/flower.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="TextColumnB">说明文字</div>
    <div class="ImageColumnB" style="text-align:center;"><img  src="image/flowers.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="TextColumnA">说明文字</div>
    <div class="ImageColumnA" style="text-align:center;"><img  src="image/fruit.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="TextColumnB">说明文字</div>
    <div class="ImageColumnB" style="text-align:center;"><img  src="image/greatwall.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="TextColumnA">说明文字</div>
    <div class="ImageColumnA" style="text-align:center;"><img  src="image/1.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
    <div class="TextColumnB">说明文字</div>
    <div class="ImageColumnB" style="text-align:center;"><img  src="image/keiskei.jpg" / alt="Use the float attribute of CSS to implement a secondary responsive page" ></div>
    <div class="EndColumn"></div>
  </div>
  </body>
  </html>

LRColumnSimpleResponsive.css

body {
  background-color:#C0C0C0;
}
.Container {
  background-color:#FFFFFF;  
  width:760px;  
  margin-left:auto;    
  margin-right:auto;
}
.TextColumnA {
  float:left;  
  width:360px;
}
.ImageColumnA {
  float:left;  
  width:360px;  
  text-align:center;  
  margin-left:auto;  
  margin-right:auto;
}
.ImageColumnA img{
  width:200px;
}
.TextColumnB {
  float:right;  
  width:360px;
}
.ImageColumnB {
  float:right;  
  width:360px;  
  text-align:center;  
  margin-left:auto;  
  margin-right:auto;
}
.ImageColumnB img{
  width:200px;
}
.EndColumn {
  clear:both;
}
@media screen and (max-width: 760px) {
   .Container {
       width:95%;
  }  
  .TextColumnA {
      float:none;    
      width:100%;
  }  
  .ImageColumnA {
      float:none;    
      width:100%;    
      text-align:center;    
      margin-left:auto;    
      margin-right:auto;
  }  
  .ImageColumnA img{
      width:80%;
  }  
  .TextColumnB {
      width:100%;
  }  
  .ImageColumnB {
      width:100%;    
      text-align:center;    
      margin-left:auto;    
      margin-right:auto;
  } 
  .ImageColumnB img{
      width:80%;
  }
}

Description:

It is the same as the previous code, but if using CSS media queries and the web browser is 760 pixels wide or less, the float is set to none and the column is suppressed. Also, the image is displayed at 80% of the screen width. It is thus displayed in a column.

The effect is as follows:

Use the float attribute of CSS to implement a secondary responsive page

If the width of the window is 760 pixels or more, it is displayed in two columns.

Use the float attribute of CSS to implement a secondary responsive page

#When the width of the window becomes 760 pixels or smaller, it becomes one column. The width of the image is also 80% of the horizontal width.

Use the float attribute of CSS to implement a secondary responsive page

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