spectrumherbal on "Tesseract theme - responsive problems"

hey
I am using the tesseract theme (at the moment) and i am having truble with responsive on mobile (mainly because of text), now i saw a similar issu here
https://wordpress.org/support/topic/theme-tesseract-need-help-with-custom-css?replies=50">

which was resolved, but i am unable to understaed where to insert the solution, meanig where to implement the line " <span style="font-size: 67.8333px;" class="headline-resize home-headline">zac thomas </span>"

does it work ???
is ther other solution
can you help me? ..... pleassssssssse

Hi Gilad4work
I use tesseract and its very flexible. are you using tesseract 2 or the original.
do you want to send me you website and I can take a look to see if you can fix with having to touch the code