CSS |高度和宽度

原文:https://www.geeksforgeeks.org/css-height-and-width/

CSS 中的高度和宽度用于设置框的高度和宽度。它的值可以使用长度、百分比或自动设置。

Width and height

示例:

<!DOCTYPE html>
<html>
   <head>
      <title>width and height</title>
      <style>
         .GFG{
         height: 120px;
         width: 50%;
         border: 5px solid black;
         padding-left: 50px;
         padding-top: 50px;
         font-size:42px;
         font-weight:bold;
         color:green;
         margin-left:50px;
         margin-top:50px;
         }
      </style>
   </head>
   <body>
      <div class = "GFG"> GeeksforGeeks </div>
   </body>
</html>

输出:

width and height

图像的高度和宽度:用于设置图像的高度和宽度。它的值可以是像素、厘米、百分比等。 T3】例:

<!DOCTYPE html>
<html>
   <head>
      <title>Height and width of image</title>
      <style>
         .GFG {
         width:300px;
         height:200px;
         border:3px solid black;
         }
      </style>
   </head>
   <body>
      <h3>Set the width and height of an Image</h3>
      <img class="GFG" src="4.jpg">
   </body>
</html>

输出:

Height and width of an image

设置元素的最大宽度和最小宽度:

  • max-width: It is used to set the maximum width of the box. It’s effect can be seen by resizing the browsers.

    html <!DOCTYPE html> <html>    <head>       <title>max-width of element</title>       <style>          .GFG {          max-width:500px;          border:2px solid black;          }       </style>    </head>    <body>       <div class="GFG">       <h3>GeeksforGeeks</h3>       <p>GeeksforGeeks is a computer science platform          where you can learn programming. It is a Computer           Science portal for geeks. It contains well written,          well thought and well explained computer science           and programming articles, quizzes etc.       </p>    </body> </html>

    输出:

    max-width

  • 最小宽度:用于设置盒子的最小宽度。它的效果可以通过调整浏览器的大小来看到。 T3】例:

<!DOCTYPE html>
<html>
   <head>
      <title>min-width of element</title>
      <style>
         .GFG {
         min-width:400px;
         border:2px solid black;
         }
      </style>
   </head>
   <body>
      <div class="GFG">
      <h3>GeeksforGeeks</h3>
      <p>GeeksforGeeks is a computer science platform
         where you can learn programming. It is a Computer 
         Science portal for geeks. It contains well written,
         well thought and well explained computer science 
         and programming articles, quizzes etc.
      </p>
   </body>
</html>

输出:

min-width

设置元素的最大高度和最小高度:

  • max-height: It is used to set the maxumum height of the box. It’s effect can be seen by resizing the browsers. Example:

    html <!DOCTYPE html> <html>    <head>       <title>max-height of element</title>       <style>          .GFG {          max-height:100px;          border:2px solid black;          }       </style>    </head>    <body>       <div class="GFG">       <h3>GeeksforGeeks</h3>       <p>GeeksforGeeks is a computer science platform          where you can learn programming. It is a Computer           Science portal for geeks. It contains well written,          well thought and well explained computer science           and programming articles, quizzes etc.       </p>    </body> </html>

    输出:

    max-height

  • min-height: It is used to set the minimum height of the box. It’s effect can be seen by resizing the browsers. Example:

    html <!DOCTYPE html> <html>    <head>       <title>min-height of element</title>       <style>          .GFG {          min-height:50px;          border:2px solid black;          }       </style>    </head>    <body>       <div class="GFG">       <h3>GeeksforGeeks</h3>       <p>GeeksforGeeks is a computer science platform          where you can learn programming. It is a Computer           Science portal for geeks. It contains well written,          well thought and well explained computer science           and programming articles, quizzes etc.       </p>    </body> </html>

    输出:

    min-height