Input field too small

I am not too sure which version of wordpress I am using but I am sure i selected the right one.

I have been having trouble with this for a while now and I have Googled everything that I can think of to explain the problem but I honestly have no clue what it is and it is not my theme because I have tried changing that as well. In my search bar, my signup for email anything I guess where you have to put something into the site the words that tell you what the input field is for are cut off. So for example in the search field half of search is cut off. Please help me fix this. I don’t know if it plugins clashing or what I am honestly unsure.

http://www.sincerelymesha.com