I whould like to achive that my mobile switcher look better I whould like to achive that is styled with hamburger menu with size and position. Also I whould like to achive that dropdown menu is bigger for example that second language starts under the last line of hamburger navigation, and third thing I whould like to achive is background of default language before I click on him is transparent.
Best regards
What you want to accomplish will require a good amount of custom coding and unfortunately, this falls out of the purpose of our Support Policy.
Sometimes, if things can be quickly resolved with just a few simple lines of CSS, we are happy to provide and help with that but this is not the case.
I recommend that you hire a front-end developer or a WPML contractor (https://wpml.org/contractors/) and they should be able to help you accomplish what you are planning.
I hope that you will find this information helpful.