A picture shows the HTML5 layout (figure) and html5 Layout

A picture shows the HTML5 layout (figure) and html5 Layout

Html5 two canvas overlapping put in a div, each canvas fill in an image, how to write the code?

Specify the postion: absolution of the two canvas, and set the left and top attributes of the two canvas. It is recommended that you put a small canvas on it, the method is to set the z-index of the two canvas to different values, and the value is greater than above.
For the drawing process, refer to the code below:
Var mycanvas = document. getElementByIdx_x_x_x ("mycanvas ");
Var context = mycanvas. getContext ("2d ");
Var imageObj = new Image ();
ImageObj. onload = function (){

// Draw cropped image
Var sourcex= 350;
Var sourceY = 50;
Var sourceWidth = 350;
Var sourceHeight = 350;
Var destWidth = sourceWidth;
Var destHeight = sourceHeight;
Var destX = mycanvas. width/2-destWidth/2;
Var destY = mycanvas. height/2-destHeight/2;
Context. drawImage (imageObj, sourceX, sourceY, sourceWidth, sourceHeight, destX, destY, destWidth, destHeight );
 
How can I add several icons to a background image using html5 css canvas?

Add float: left to the style of each icon to display it in one row. Adjust their distance through margin or padding!