ul {
    list-style-type: none;
    margin: 0;
    margin-left: 16px;
    padding: 0;
    overflow: hidden;
    background: lightblue;
    height: 36px;
}

li {
    float: left;
    vertical-align: bottom;
}

li a {
    display: block;
    color: blue;
    text-align: center;
    text-decoration: none;
    background: #e6e6e6;
    margin-right: 8px;
    margin-top: 8px;
    height: 32px;
    width: 60px;
    font-size: 16px;
    font-weight: bold;
    border: 1px solid #aaaaaa;
    border-bottom-right-radius: 4px;
    border-bottom-left-radius: 4px;
    border-top-right-radius: 4px;
    border-top-left-radius: 4px;
    padding: 2px;
    cursor: pointer;
}

li a:hover {
    background-color: #e6e6e6;
}