Hi...Thanks for giving me a chance.
I have read all your requirement and I wish to work for your project.
It is because I am very familiar with Html,CSS,PHP,Javascript, Opencart and have many experiences of development.
So if you hire me, you will have good results.
Whatever your needs are, I will find a solution that fits it.
I promise you high quality work ,complete attention and proper communication.
Thanks for your time.
Regards.