when im doing css, i open another page and press ctrl+shift+j and it opens the page editor thing, then i press the thing on the uper left corner that allows you to select things and i edit it how i want it on the thing, then copy and paste the command into the css box.
to change font + size
font-size: 10px;
font-family: cursive;
to add shadows
text-shadow: 0 0 4px white;
try to inspect ur page with ctrl + shift + j and see what fonts/sizes u'd like to try before putting the css in !
when im doing css, i open another page and press ctrl+shift+j and it opens the page editor thing, then i press the thing on the uper left corner that allows you to select things and i edit it how i want it on the thing, then copy and paste the command into the css box.
idk if that made any sense, sorry <3 good luck!