Method: 1. Use the width and height attributes of the img tag, the syntax "
"; 2. Use the css width and height attributes, syntax "img{width: value; height: value}".
The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.
Method 1: Use the width and height attributes of the img tag
##<img src="img/1.jpg" style="max-width:90%" style="max-width:90%"/ alt="How to set image size in html" >
Why use the height and width attributes
Have you ever seen the content of a document appear irregularly when it loads? move. This happens because the browser is constantly re-laying out the page in order to be able to display each loaded image. The browser determines the size of the image by downloading and parsing the width and height of the image, and then leaves a corresponding rectangular space in the display window. The browser then adjusts the display layout of the page to insert the image into the display. This also tells us that the image is an independent file, and it is loaded independently from the source file. But this is not the most efficient way to display a document, because the browser must check each image file and calculate their screen space before displaying adjacent and subsequent document content. This may cause a very large delay in the display of the document, interrupting the user's reading. A more efficient method for creators is to specify the dimensions of the image through the height and width attributes of theProblems with height and width attributes
Although the height and width attributes of thehtml video tutorial"
Method 2: Using the width and height attributes of css
width attribute Set the width of the element, and the height attribute sets the height of the element.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
img{
width:200px ;
height: 200px;
}
</style>
</head>
<body>
<img src="img/1.jpg"/ alt="How to set image size in html" >
</body>
</html>Programming Video! !
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