css: Use SCSS nesting for `.portico-landing.features-app section a.feature-block`.
css: Use SCSS nesting for `.portico-landing.features-app section a.feature-block`.

kou/zulip,showell/zulip,rht/zulip,punchagan/zulip,brainwane/zulip,kou/zulip,timabbott/zulip,synicalsyntax/zulip,showell/zulip,synicalsyntax/zulip,showell/zulip,punchagan/zulip,punchagan/zulip,rht/zulip,zulip/zulip,punchagan/zulip,zulip/zulip,hackerkid/zulip,zulip/zulip,synicalsyntax/zulip,hackerkid/zulip,punchagan/zulip,andersk/zulip,brainwane/zulip,showell/zulip,brainwane/zulip,timabbott/zulip,eeshangarg/zulip,kou/zulip,showell/zulip,rht/zulip,eeshangarg/zulip,andersk/zulip,timabbott/zulip,andersk/zulip,timabbott/zulip,kou/zulip,andersk/zulip,andersk/zulip,hackerkid/zulip,brainwane/zulip,brainwane/zulip,punchagan/zulip,brainwane/zulip,hackerkid/zulip,eeshangarg/zulip,eeshangarg/zulip,andersk/zulip,zulip/zulip,rht/zulip,rht/zulip,hackerkid/zulip,andersk/zulip,timabbott/zulip,brainwane/zulip,synicalsyntax/zulip,showell/zulip,zulip/zulip,timabbott/zulip,kou/zulip,eeshangarg/zulip,showell/zulip,eeshangarg/zulip,synicalsyntax/zulip,zulip/zulip,rht/zulip,synicalsyntax/zulip,punchagan/zulip,timabbott/zulip,kou/zulip,hackerkid/zulip,synicalsyntax/zulip,hackerkid/zulip,rht/zulip,eeshangarg/zulip,zulip/zulip,kou/zulip