Profile textarea width (cols) is overrided by default prosilver style

Hello!

BUG REPRODUCTION:
1) Set board style to default "prosilver"
2) Create custom profile field
3) Under "Profile type specific options" -> "Length of input box:"
4) Set field width (Columns / cols) to "30"
5) Open UCP > Profile > Edit Profile

ACTUAL OUTCOME:
Field "textarea" is not 30 width

EXPECTED OUTCOME:
Field "textarea" is 30 width

NOTES:
Cols value in profile is correct, but it is overriden by:

/*forms.css*/

textarea.inputbox {

    width: 85%;

}

dd textarea {

    width: 85%;

}

textarea {

    font-family: "Lucida Grande", Verdana, Helvetica, Arial, sans-serif;

    width: 60%;

    padding: 2px;

    font-size: 1em;

    line-height: 1.4em;

}