Calculator_Is

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its a is calculator with js extention

index.html part

1-first of all bootstrap permission code were used to use ready-made bootsrap codes

2-i use grid system for the first job

3-one screen part and 23 button build with div and button

css

1-Apart from the general css properties i copied the font named oswald from google fonts as an extra

js

1- i made definition to run the screen and key part in js