How can I override Vuetify’s typography classes?

I’d like to override Vuetify’s typography classes, is there a way to do it?
A solution could be to create my own classes inside the main.css, but I wanted to use the same names used by Vuetify like text-h1, text-h2, etc.

How can I truncate v-data-table column content by using cellProps?

I created following data table:

How can I change all Vuetify’s inputs opacity?

I created following component

How can I add a border bottom to Vuetify v-tabs?

I’d like to achieve following result: