Learn Swedish: Den strikta klädkoden är även väldigt viktig. - The strict dress code is also very important.

In a standard Swedish main clause, focus particles like även (also), bara (only), or också (also) act like sentence adverbs. This means they belong in the mid-field position, which is directly after the first verb (är). English happens to use the same word order here ('is also').

Could I use också instead of även in this sentence?

Yes, you absolutely can! Both mean 'also' in this context. även sounds slightly more formal and is very common in writing, while också is standard for everyday speech. They both follow the same placement rule, so you could just swap it in: Den strikta klädkoden är också väldigt viktig.

Why does the sentence use both Den and the -en ending on klädkoden?

This is a great reminder of the Swedish 'double definite' rule. When a definite noun (the dress code) has an adjective attached to it (strikta), you have to use the standalone article (Den), the adjective with an -a ending, and the definite form of the noun itself (klädkoden).

Why does strikta end in an -a while viktig does not?