1024 × 1024
Source:https://www.nimble-made.com/blogs/news/black-tie-optional
1049 × 700
Source:https://junebugweddings.com/wedding-blog/what-does-black-tie-optional-mean/
1440 × 2560
Source:https://www.gentlemansgazette.com/tuxedo-black-tie-guide/etiquette/black-tie-optional-dress-code/
1500 × 998
Source:https://www.sparklesandshoes.com/2020/10/wedding-dress-code/
576 × 768
Source:https://www.theknot.com/content/what-to-wear-formal-black-tie-optional-black-tie-invited
1447 × 840
Source:https://www.gentlemansgazette.com/tuxedo-black-tie-guide/etiquette/black-tie-optional-dress-code/
1200 × 800
Source:https://carlyahill.com/black-tie-optional-wedding-guest-dresses/
627 × 940
Source:https://theblacktux.com/blog/black-tie-optional-dress-code-men/
2250 × 1500
Source:https://www.brides.com/black-tie-optional-wedding-attire-4800698
1200 × 800
Source:https://www.erindavies.com/blog/decoding-the-dress-code