<div class = "nav">
    <ul>
        <a href = "index.html"><li class = "left">Pagrindinis</li></a>
        <a href = "index.html"><li>Forumas</li></a>
        <a href = "index.html"><li>Nariai</li></a>
        <a href = "index.html"><li>Atnaujinimai</li></a>
        <a href = "index.html"><li>Tiesioginės transliacijos</li></a>
        <a href = "index.html"><li>VVP</li></a>
    </ul>
</div>

.nav {
    background: #f6a280;
    width: 1160px;
    height: 50px;
    border-radius: 10px;
}

.nav ul {
    position: relative;
    left: -40px;
}

.nav ul li {
    position: relative;
    top: 14px;
    padding: 14px 10px 14px;
    background: transparent;
    list-style-type: none;
    transition: 0.5s;
    display: inline;
    border-right-style: solid;
    border-right-width: 2px;
    border-right-color: #df9678;
}

.nav ul li.left{
    position: relative;
    top: 14px;
    padding: 14px 10px 14px;
    background: transparent;
    list-style-position: initial;
    list-style-type: none;
    transition: 0.5s;
    display: inline;
    border-right-style: solid;
    border-right-width: 2px;
    border-right-color: #df9678;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
}

.nav ul li:hover {
    background: #df9678;
}

.nav ul a {
    color: #fff;
    text-decoration: none;
}