CSS River Width Modification

looking everywhere for this Wire text input box css....

this seems like the most logical place yet it has  no  effect either in px or %...

mod/thewire/views/default/thewire in 1.12.17???

?>
/********************************
The Wire
*********************************/
#thewire-textarea {width:420px;
    padding: 6px;
}
#thewire-characters-remaining {
    text-align: right;
    float: right;
    font-weight: bold;
    color: #000;
}
.thewire-characters-remaining {
    color:#000;
    border:none;
    font-size: 100%;
    font-weight: bold;
    padding:0 2px 0 0;
    margin:0;
    text-align: right;
    background: white;
}
.thewire-characters-remaining-warning {
    color: #D40D12 !important;
}
.thewire-parent {
    margin-left: 40px;
}
.thewire-post .elgg-content {
    margin: 10px 5px;
}