feat(template): add main content class support
feat(template): add main content class support

leancloud/leancloud.rocks,leancloud/leancloud.rocks,sparanoid/almace-scaffolding,sparanoid/almace-scaffolding,sparanoid/almace-scaffolding,sparanoid/sparanoid.com,sparanoid/sparanoid.com,sszuflita/almace-scaffolding,sparanoid/sparanoid.com,leancloud/leancloud.rocks,hjiang/1byte.io,sszuflita/almace-scaffolding,sszuflita/almace-scaffolding,hjiang/1byte.io,hjiang/1byte.io