Edit your style.css file
– How can I change the sub title font at the top of the page (the text underneath where it read Global@CU)
#logo .site-description {
font: normal 17px/1em Georgia, serif;
color: #ffffff !important;
}
The above code has white color (#ffffff)
So change that value. Use some colorpickers to get hexadecimal values
https://www.colorpicker.com/
– How can I put more of a gap in between the title and sub title of the site?
https://www.w3schools.com/css/css_padding.asp
How can I change the introduction text in the left hand side navigation bar (i.e. the text that reads ‘Globe@CU is an online platform for the promotion of international news stories…’)
wp-admin Dashboard -> Appearance -> widgets