* {
    padding: 0px;
    margin: 0px;
    outline: none;
    font-family: sans-serif;
    font-size: 1rem;
}

body {
    width: 100%;
    height: 100vh;
}

.nav {
    position: relative;
    display: flex;
    flex-direction: row;
    justify-content: center;
}

.nav > li {
    background-color: #6c6c6c;
    color: #fff;
    list-style-type: none;
    padding: 20px 50px;
    position: relative;
    transition: 100ms;
}

.nav > li:hover {
    cursor: pointer;
    background-color: #ffa0a0;
}

.nav > li:hover .sub-nav {
    display: flex;
}

.sub-nav {
    display: none;
    flex-direction: column;
    background-color: #d6d6d6;
    color: #fff;
    padding: 10px;
    position: absolute;
    top: 58px;
    left: 0px;
}

.sub-nav li {
    padding: 10px 20px;
    list-style-type: none;
    transition: 100ms;
}

.sub-nav li:hover {
    background-color: #939393;
}