1317 × 2560
Source:https://www.theforage.com/blog/basics/business-casual
539 × 600
Source:https://restartyourstyle.com/business-casual-vs-smart-casual/
1440 × 2560
Source:https://www.gentlemansgazette.com/business-casual-men-attire/
1000 × 1500
Source:https://www.businessnewsdaily.com/15346-business-casual-attire.html
1287 × 858
Source:https://stylishlyme.com/what-to-wear/business-casual-attire-for-women/
1215 × 2160
Source:https://www.indeed.com/career-advice/starting-new-job/guide-to-business-casual-attire
450 × 693
Source:https://www.cvent.com/en/blog/insights/successfully-dress-business-casual
1440 × 2560
Source:https://www.gentlemansgazette.com/smart-casual-dress-code/
680 × 680
Source:https://www.rd.com/article/business-casual/
300 × 600
Source:https://www.businessinsider.com/how-to-dress-for-work-business-attire-2014-8