Solving the problem of mini program canvas hiding

I believe that many times, everyone will encounter the need to use canvas to generate pictures.
Of course I also encountered it. After generating the canvas in the wxml page of the project, I found out how to add css to the canvas tag. I can't prevent the canvas from affecting the page.

 // 无论是opacity 还是 z-index 都无法解决,多多少少会影响 

After thinking about it for a while, I came up with the followingsolution:Add a parent tag to the outer layer ofcanvas, and then Control the display of the parent tag

 //让父标签 0宽 0高 隐藏溢出   

If the above does not work, please see the following:

 // 直接让canvas 飞到天际, 简单粗暴; 使用时注意 position的问题; 如果 fixed不行, 换其他定位试试 

ok .. Come on and write the code...

Recommended tutorial: "WeChat Mini Program》

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