html - Why isn't the letter-spacing property being applied?

Question

<span style="font-size:20px;" "font-color: rgb (52, 52, 52,);" "letter-spacing:-50px;">
Syst&eacute;my pre k&uacute;renie
<span style="color: rgb(0, 162, 228);">│&lt;/span>
Vodoin&scaron;tal&aacute;cia a kanaliz&aacute;cia
<span style="color: rgb(0, 162, 228);">│&lt;/span>
Plynoin&scaron;tal&aacute;cia
<span style="color: rgb(0, 162, 228);">│&lt;/span>
Mont&aacute;ž centr&aacute;lnych vys&aacute;vačov
</span>

The "letter-spacing:-50px;" DOESN'T work... WHY???

Answer 1

http://www.w3.org/TR/1998/REC-CSS2-19980512/text.html#spacing-props

This value indicates inter-character space in addition to the default space between characters. Values may be negative, but there may be implementation-specific limits. User agents may not further increase or decrease the inter-character space in order to justify text.

The value of -50px is huge and I believe that you are running into a limitation of the implementation.