Hello @technase
Go to online store ----> themes ----> actions ----> edit code ---->theme.css
add this code at the end of the file and save.
@media screen and (min-width: 1150px) {
.section-stack__intro {
width: 30% !important;
}
.section-stack__main {
width: 70% !important;
}
}
result
If this was helpful, hit the like button and accept the solution.
Thanks