I was messing around with updating some styles today and noticed some missing semi colons in prosilver/theme/colours.css
a.up { background-image: url("

{T_THEME_PATH}/images/arrow_up.gif") }
a.down { background-image: url("{T_THEME_PATH}

/images/arrow_down.gif") }
a.left { background-image: url("

{T_THEME_PATH}/images/arrow_left.gif") }
a.right { background-image: url("{T_THEME_PATH}

/images/arrow_right.gif") }
also found some empty/white space in the same css file and in subsilver2/theme/stylesheet.css
sorry if I picked the wrong issue type didn't know what to choose