/* Style the list */
ul.tab {
    text-align: center;
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    border: 1px solid #ccc;
    background-color: #f1f1f1;
}

/* Float the list items side by side */
ul.tab li {
    display:inline-block;
    *display:inline; /*IE7*/
    *zoom:1; /*IE7*/
}
/* Style the links inside the list items */
ul.tab li a {
    display: inline-block;
    color: black;
    text-align: center;
    padding: 14px 14px;
    text-decoration: none;
    transition: 0.3s;
    font-size: 17px;
}