<div class="wrapper">
<nav id="nav">
                <ul class="menu">
                    <li class="menu__item"><a href="#" class="menu__link">Home</a></li>
                    <li class="menu__item"><a href="#" class="menu__link">About</a></li>
                    <li class="menu__item"><a href="#" class="menu__link">Blog</a></li>
                    <li class="menu__item"><a href="#" class="menu__link">Services</a></li>
                    <li class="menu__item"><a href="#" class="menu__link">Contact</a></li>
                </ul>
            </nav>

<div class="offer-block"></div>
</div>

.wrapper{
max-width: 1170px;
margin: 0 auto;
padding: 0 40px;

.menu{
    display: flex;
    justify-content: center;
}

.menu__item{
    margin-left: 10px;
}

.menu__item .menu__link{
    display: block;
    background: rgba(0, 0, 0, .3);
    padding: 12px 25px;
    color: #EAD968;
    text-transform: uppercase;
    font-weight: bold;
    letter-spacing: 2px;
    transition: all .3s;
}

.menu__item:first-child .menu__link{
    margin-left: 0;
    border-radius: 15px 0 0 0;
}

.menu__item:last-child .menu__link{
    margin-left: 0;
    border-radius: 0 0 15px 0;
}

.menu__link:hover{
    background: rgba(0, 0, 0, .5);
}

.offer-block{
    background: rgba(0, 0, 0, 0.6);
    max-width: 740px;
    margin: 40px auto;
    padding: 20px 30px;
    text-align: justify;
    border: 2px dashed #EAD968;
}