styles2.css

header {
    background-color: #f2f2f2;
    padding: 10px;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    text-align: right;
}

nav ul li {
    display: inline-block;
    position: relative;
}

nav ul li a {
    display: block;
    padding: 10px 15px;
    text-decoration: none;
    color: #333;
}

nav ul li:hover>ul.submenu {
    display: block;
}

nav ul li ul.submenu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: #f2f2f2;
    padding: 0;
    text-align: left;
    width: max-content;
    white-space: nowrap;
}

nav ul li ul.submenu li {
    display: block;
}

nav ul li ul.submenu li a {
    padding: 10px 15px;
    color: #333;
    display: block;
}

nav ul li ul.submenu li a:hover {
    background-color: #ddd;
}

.submenu-arrow {
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 5px 4px 0 4px;
    border-color: #333 transparent transparent transparent;
    pointer-events: none;
}

.has-submenu .submenu-arrow.down {
    transform: translateY(-50%) rotate(180deg);
}

nav ul li .submenu-arrow {
    position: absolute;
    top: 50%;
    right: -20px;
    /* Adjust this value to control the space between menu item and arrow */
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 5px 4px 0 4px;
    border-color: #333 transparent transparent transparent;
    pointer-events: none;
}

.has-submenu .submenu-arrow.down {
    transform: translateY(-50%) rotate(180deg);
}