Make collapsible content full width on desktop
In collapsible content section, add the following in customer css:

@media screen and (min-width: 768px) {
.collapsible-content {
max-width: 120rem;
margin: 0 auto;
padding: 0px 3rem;
}
.collapsible-content-wrapper-narrow {
margin-left: 0px;
}
}
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