Dress styles that are suitable for many weddings include cocktail dresses, short dresses and suits. However, the appropriate style also depends on the theme of the wedding, according to About.com.
Some weddings are informal, and for this type of wedding, casual dresses and business skirt suits are suitable. Casual dresses are typically short or mid-length. Floor-length dresses are more suited for formal or white tie-themed weddings. Formal dresses often include details such as beading, sequins, fur, and diamonds or rhinestones.
For daytime weddings, avoid wearing black. Clubwear and sexy dresses are also inappropriate for weddings. Stay classy with a simple sundress for daytime weddings or a little black dress for weddings that take place at night, advises About.com.