:root {
  --border-color: rgba(44, 44, 44, 0.795);
}

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

body {
    height: 100vh;
    padding: 1rem;
    padding-top: 4rem;
    font-family: monospace;
}

.btn-wrapper, h1 {
    position: absolute;
    right: 3rem;
    top: 1rem;
}

h1 {
    left: 1rem;
    font-size: 1.2rem;
}

button {
    padding: 0.3rem 0.5rem;
}

.container {
    height: calc(100vmin - 5rem);
    aspect-ratio: 1 / 1;
    border-top: 0.1px solid var(--border-color);
    border-left: 0.1px solid var(--border-color);
    margin: auto;
    display: flex;

}

.container > div {
    flex: 1;
    display: flex;
    flex-direction: column;
    border-right: 0.1px solid var(--border-color);

}

.container > div > div{
    flex: 1;
    border-bottom: 0.1px solid var(--border-color);
    transition: background 10s;
}

.container > div > div:hover{
    transition: 0ms;
}