:root {
    --rotation-speed: 500ms;
    --background-color: #222;
}

html,
body {
    height: 100%;
    overflow-x: hidden;
    color: white;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--background-color);
    font-family: Arial, Helvetica, sans-serif;
}

[type='radio'] {
    display: none;
}

.container {
    height: 300px;
    width: 300px;
    position: relative;
    border: 1px solid whitesmoke;
}

.submenu-container {
    position: relative;
}

.submenu {
    background-color: white;
    color: black;
    position: absolute;
    top: 1.2rem;
    display: none;
    padding: 10px 10px;
    width: 80px;
}

.submenu::before {
    content: '';
    position: absolute;
    bottom: 100%;
    border: 0.2rem solid transparent;
    border-bottom: 0.2rem solid white;
    left: 50%;
    transform: translateX(-50%);
}

.submenu > * {
    padding: 5px 0;
    z-index: 8;
}

.submenu-container:hover > .submenu,
.subemnu:hover,
.right-submenu:hover,
.right-submenu-container:hover > .right-submenu {
    display: block;
}

.right-submenu-container {
    position: relative;
}

.right-submenu {
    background-color: whitesmoke;
    position: absolute;
    left: calc(100% + 10px + 0.4rem);
    top: 0.5rem;
    padding: 10px 10px;
    display: none;
    z-index: 10;
}

.right-submenu::before {
    content: '';
    position: absolute;
    right: 100%;
    border: 0.41rem solid transparent;
    border-right: 0.41rem solid whitesmoke;
    top: 0%;
}

p {
    display: none;
}

p:target {
    display: block;
}

nav {
    background-color: lightgreen;
    padding: 10px 20px;
}

.language {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}