WARNING

This tutorial is not responsible for any damage or legal action taken against you.
the act of mining through a browser isn't illegal yet, but be aware of the actions you take since its a grey area.
additionally, the following example and referral links will USE your CPU power to mine, certain browser add-on's
and anti-viruses might pop-up and warn you of different threats. the mining occurs as long as the specific
mining web page is open, or a proof-of-work captcha is activated.
=====================================================================================
suggestion: disable any add-on or AV's that might interfere.

Step 1:
make a user at coinhive(browser mining service)

(this redirection contains proof of work captcha)
https://cnhv.co/omr2

Step 2:
get a service to host your webpage.
it can be payed for or a free service what ever you choose.

my suggestion is 000webhost (free service)

https://www.000webhost.com

step 3:
create an empty html file on the hosting named "miner.html"

Step 4:
Right Mouse click on "miner.html" and click "view"

Step 5:
Save the URL (copy)

Step 6:
Go to coinhive
click on shortlinks
make a new shortlink with the adress you saved (miner.html URL)
set the hash-rate to 256

test your newly created link to see if it redirects you to miner.html on your site, after it finished proof-of-work.

step 7:
edit "miner.html"

and paste the following html code:

https://pastebin.com/raw/RDwgAS0K

replace the short link with yours

SAVE!

check if it works, you should get the following result(an actual example):

https://coinmaina.000webhostapp.com/miner.html

the short-link is in a loop, and redirects to it-self.
as long as its open, it will mine.
check how many hashes you get on the coinhive short-link counter while you leave the miner open.

step 8:

embed the miner in an actual webpage with content, to make the user stay and mine for you.
you will embed the code using an "iframe"

html code:
https://pastebin.com/raw/9jAreVv8

embedding example:
https://pastebin.com/raw/7MWNQPFg

a working example and how it works:

https://coinmaina.000webhostapp.com/index.html

NOTE:
if the content web page is not on the same host / folder as the "miner"
the "src=miner.html" attribute should be change to the full address like this:
src="https://coinmaina.000webhostapp.com/miner.html"