ı edited them on /ow_plugins/mobilepro/static/css

and made like that. But not efecting i dont know why?
where i should modice it?

.owm_sidebar_edit_profile_btn, .owm_sidebar_change_password_btn {    display: block;    color: #acacac;    font-family: 'helveticaneuecyrmedium', Helvetica Neue, Helvetica, Arial, sans-serif;    padding: 7px 0;    -moz-border-radius: 4px;    -webkit-border-radius: 4px;    border-radius: 4px;    background: #DEDEDE;    text-align: center;    font-size: 125%;    margin-top: 16px;}

.owm_sidebar_profile_btn {

    display: block;

    color: #929292;

    font-weight: bold;

    padding: 10px 0;

    -moz-border-radius: 5px;

    -webkit-border-radius: 5px;

    border-radius: 5px;

    background: #DEDEDE;

    text-align: center;

    font-size: 125%;

    margin-top: 16px;

}