.mejs-clammr-button {
    width: 100px !important;    
}

.mejs-clammr-button button, .mejs-clammr-button button:hover {  
    cursor: pointer; 
    /*display: inline-block;*/
    width: 100%;
    height: 100%;
    border: 0;
    background-color: transparent;
    background-image: url(../images/clammr_logo.png);
    background-repeat: no-repeat;
    background-size: 20px 20px;
    margin: 4px 7px;
    color: #fff;
    font-size: 11px;
    padding: 0 0 5px 4px;
    text-transform:none;
}