How to solve the problem that the mouse custom style settings in CSS do not take effect?

my sample code is:

body{
    cursor: url(https://davidwalsh.name/demo/css-custom-cursor.ico),auto;
}

http://blog.csdn.net/renfufei.
I read the above article and wrote it in the same style. Why can"t I see the effect of mouse changes locally?

Jun.30,2021

problem solved, thanks to @ Joyyu's reminder, just set the width height of body and html to 100%.


it is possible that the picture is too big. 32 / 32 is generally OK

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