.mceItemUpload {
    border:1px dotted #555 !important;
    background-position:center;
    background-repeat:no-repeat;
    background-color:#eee;

    background-image:url(../img/upload.gif);

    display: inline-block;
    vertical-align: middle;
    text-align : center;
}

.mceItemUpload span.upload-progress {
    position: relative;
    display: inline-block;
    top: 50%;
    line-height: 10px;
    font-family: "Helvetica, Arial, sans-serif";
    font-size: 10px;
    vertical-align: baseline;
    margin: -5px 0 0 0;
    text-align: center;
    width: 32px;
    -moz-user-select : none;
    -webkit-user-select: none;
    -ms-user-select : none;
}