span.mceItemPhp, span.mcePhp, span.mceItemScript, span.mceItemStyle {
    display: inline-block;
    width: 20px;
    height: 20px;
    background-image: url(../../../../libraries/img/ext.png);
    background-repeat: no-repeat;
    -webkit-user-select:all; -webkit-user-modify:read-only; -moz-user-select:all; -moz-user-modify:read-only; 
    cursor: pointer;
    font-size : 0;
    line-height : 0;
    letter-spacing: normal;
    word-spacing: normal;
    text-indent : -9999px;
}
span.mceItemPhp, span.mcePhp {
    background-position: 0 -100px;
}
span.mceItemScript {
    background-position: 0 -220px;
}
span.mceItemStyle {
    background-position: 0 -420px;
}

span.mceItemScript.mceItemSelected, span.mceItemStyle.mceItemSelected, span.mceItemPhp.mceItemSelected, span.mcePhp.mceItemSelected {
    background-color: #b4d4ff;
    border : 0 none;
}