The default text logo that is used by cassiopeia can easily be changed in size with some custom css. This article will explain how this is done.

Go to the custom css section of the module, and add the following css:

.brand-logo{font-size: 22px;}
.site-description {font-size: 20px !Important;}
 

Where you can change the brand logo text and tagline to the size you want them to be.