Styling all "Magnifying glass" icons in search fields

/* icon hover on main search page */
#bbpress-forums #bbp-search-form input[type="submit"]:hover {
    background-position: -24px 0px; background-color: #F7F7F7;
}

#bbpress-forums #bbp-search-form input[type="submit"],
.widget form#bbp-search-form input[type="submit"],
.widget_search #searchform input[type="submit"] {
    transition: all 0.4s ease-in-out 0s; 
}
.widget form#bbp-search-form input[type="submit"]:hover,
.widget_search #searchform input[type="submit"]:hover{
    background-color: #F7F7F7;
}

.widget form#bbp-search-form input[type="submit"] { margin-top: 3px; }