* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
}

body {
    font-family: sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #393939;
}

button, input {
    background-color: #ffffff;
    border: 1px solid currentColor;
    padding: 4px 8px;
}

button {
    cursor: pointer;
}

button:hover {
    color: #ffffff;
    background-color: #393939;
}