.upload-btn-wrapper 
{
    position: relative;
    overflow: hidden;
    display: inline-block;
    cursor:pointer !important;
}

.btn-upload
{
    cursor:pointer !important;
}

.upload-btn-wrapper input[type=file] 
{
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
}