Hi
This page is different from the one on that topic.
The gap here belongs to the component content block:
@media (min-width: 992px) {
.t4-component, .component {
padding-top: 5rem !important;
padding-bottom: 5rem !important;
}
}
You can override with this rule and adjust the value.
With the 'About Us' text, you can use this code:
.t4-masthead .ja-masthead .ja-masthead-detail {
margin-left: 0;
}