* {
    box-sizing: border-box;
}

html {
    display: flex;
    height: 100%;
}

body {
    display: flex;
    flex-direction: row-reverse;
    justify-content: space-evenly;
    align-items: center;
    background-color: #e1e1e1;
    flex: 1;
}

.main-box {
    border-radius: 30px;
    overflow: hidden;
    border: 3px black solid;
}

.row {
    display: flex;
}

.cell {
    display: flex;
    width: 100px;
    height: 100px;
    border: 2px black solid;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 600;
    background-color: #f2f2f2;
}

.cell:hover {
    border: 4px black solid;
}

.input {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input * {
    border-radius: 15px;
    padding: 10px;
    text-align: center;
}

.color {
    background-color: #f2f2f2;
    width: 120px;
    font-weight: 600;
    font-size: 1.5rem;
}

button {
    font-size: 1rem;
}

button:hover {
    scale: 1.03;
    cursor: pointer;
}

.colored {
    background-color: aquamarine;
}

/* Chrome, Safari, Edge, Opera */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}