Mac Users
To get accents on the Mac, hold down the Option key, and while holding it down, type the letter e; then release those keys and type the letter that you want the accent to appear on:

á = Opt + e, then a
é = Opt + e, then e
í = Opt + e, then i
ó = Opt + e, then o
ú = Opt + e, then u
For the ñ, hold down the Option key while you type the n; release and type n again.

ñ = Opt + n, then n
To place the diaeresis over the u, hold down the Option key while pressing the u key; release and type u again.

ü = Opt + u, then u
The inverted punctuation marks are achieved as follows:

¡ = Opt + 1
¿ Opt + shift + ?

 

	HTML	Symbol	ASCII	Letter
Á	Á	Á	alt + 0193	Capital A-acute
á	á	á	alt + 160	Lowercase a-acute
É	É	É	alt + 0201	Capital E-acute
é	é	é	alt + 130	Lowercase e-acute
Í	Í	Í	alt + 0205	Capital I-acute
í	í	í	alt + 161	Lowercase i-acute
Ñ	Ñ	Ñ	alt + 0209	Capital N-tilde
ñ	ñ	ñ	alt + 164	Lowercase n-tilde
Ó	Ó	Ó	alt + 0210	Capital O-acute
ó	ó	ó	alt + 162	Lowercase o-acute
Ú	Ú	Ú	alt + 0218	Capital U-acute
ú	ú	ú	alt + 163	Lowercase u-acute
Ü	Ü	Ü	alt + 0218	Capital U-umlaut
ü	ü	ü	alt + 0252	Lowercase u-umlaut
«	«	«	alt + 0171	Left angle quotes
»	»	»	alt + 0187	Right angle quotes
¿	¿	¿	alt + 168	Inverted question mark
¡	¡	¡	alt + 173	Inverted exclamation point

Using Cryptic Codes
If, for some reason, you don't want to change your keyboard, you can always type in the troublesome cryptic codes. Using this arcane system, the following codes apply:

á = Alt + 0225
é = Alt + 0233
í = Alt + 0237
ó = Alt + 0243
ú = Alt + 0250
ñ = Alt + 0241
ü = Alt + 0252
¡ = Alt + 0161
¿ Alt + 0191
When using this utterly out-dated system, there are two important things to remember. First, when you type in the numbers, some keyboards require that you use the "numeric keypad" located to the side, rather than the numbers along the top. Second, on some keyboards, only one of the two Alt keys will work for this.