@font-face {
    font-family: 'Digital-7';
    src: url('./fonts/Digital-7.ttf') format('embedded-opentype'), /* Internet Explorer */
    url('./fonts/Digital-7.ttf') format('woff2'), /* Super Modern Browsers */
    url('./fonts/Digital-7.ttf') format('woff'), /* Pretty Modern Browsers */
    url('./fonts/Digital-7.ttf')  format('truetype'), /* Safari, Android, iOS */
    url('./fonts/Digital-7.ttf') format('svg'); /* Legacy iOS */
}

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

body {

    font-weight: normal;
    font-style: normal;
}

.container {
    font-family: 'Digital-7';
    border: 1px dashed black;
    min-width: 310px;
    max-width: 310px;
    margin: 10px auto;
    overflow: auto;
    padding: 10px;
    border-radius: 5px;
}

.row {
    min-width: 290px;
    max-width: 290px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.screen {
    height: 40px;
    line-height: 28px;
    width: 190px;
    text-align: right;
    border: 1px solid black;
    border-radius: 5px;
    font-size: 30px;
    padding: 6px;
}

button {
    background-color: black;
    color: white;
    font-family: inherit;
    border: none;
    width: 50px;
    padding: 5px 15px;
    margin: 5px;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 20px;
    line-height: 30px;
  }

button:active {
    background-color: lightgrey;
    color: black;
}