* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    padding: 50px;
}

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

.main-menu {
    list-style: none;
    background-color: blue;
    display: inline-flex; 
}

.main-menu li {
    position: relative; 
    border-right: 1px solid white; 
}

.main-menu li:last-child {
    border-right: none;
}

.main-menu li a {
    display: block;
    padding: 15px 25px;
    text-decoration: none;
    color: white; 
    font-weight: bold;
    transition: 0.3s;
}


.main-menu li:hover > a {
    background-color: oldlace;
    color: black;
}

.sub-menu {
    position: absolute; 
    top: 100%;
    left: 0;
    width: 250px;
    background-color: blue;
    list-style: none;
    display: none;
    z-index: 10;
}

.sub-menu li {
    border-right: none;
    border-bottom: 1px solid white; 
}

.has-submenu:hover .sub-menu {
    display: block;
}

.sub-menu li a {
    padding: 12px 20px;
    font-size: 14px;
}

.sub-menu li:hover a {
    background-color: oldlace;
    color: black;
}