This is my CSS Code. W3C CSS validator saying the above error.

Please provide suggestions

```
span.selected {
    width:70px;
    text-indent:10px;
    border-top-left-radius:5px;
    border-bottom-left-radius:5px;
    background:#7a7a7a;
    overflow:hidden;
    font-family: Tahoma;
    font-size: 1.1em;
    font-weight: bold;
    text-align: center;
}

```