The width, height of the Canvas, and the width, height, and widthcanvas of the Canvas in the style.

The width, height of the Canvas, and the width, height, and widthcanvas of the Canvas in the style.

You can control the size of a Canvas in either of the following ways:

1: directly set the book width and height attribute values on the Canvas label;

2: Set the width and height of the Canvas through Css;

 

There is a big difference between the two methods.

1: The Canvas width and height are 300*150 by default. When you set the width and height attribute values of the label, the width and height of the Canvas element are controlled, and the width and height of the Canvas. Two values are set at the same time.

2: When Css sets width and height, it only controls the width and height of the Canvas element, without changing the Canvas size.

 

Therefore, you can use styles to control the size of the Canvas and zoom in and out the Canvas content.