Note the Login URL text and the Edit button inside the tab content:

https://github.com/cristijora/vue-tabs/blob/master/themes/vue-tabs.css#L4-L6
.vue-tabs a {
text-decoration: none;
color: gray; }
I feel that those lines should not be there...
It looks better too without it tbh:

(Sorry for the red box censored texts btw, but I hope you get the point.)