style.css

@import url('https://fonts.googleapis.com/css2?family=Chivo+Mono&display=swap');

.button {
    padding: 20px;
    margin: 0 1px;
    width: 60px;
    height: 60px;
    border: 1px solid rgba(0, 0, 0, 0.524);
    border-radius: 3px;
    cursor: pointer;
    background-color: rgba(150, 146, 146, 0.726);
    color: white;
    box-shadow: 4px 3px 8px 1px #000000;
    -webkit-box-shadow: 4px 3px 8px 1px #9e9c9c2f;
    font-family: 'Chivo Mono', monospace;
    font-size: 20px;
    text-align: center;
}

.row input {
    color: white;
    margin-top: 40px;
    margin-bottom: 15px;
    margin-left: 40px;
    margin-right: 40px;
    width: 230px;
    padding: 45px 20px;
    border: 1px solid rgba(0, 0, 0, 0.545);
    background-color: hsla(120, 88%, 30%, 0.322);
    text-align: start;
    border-radius: 2px;
    box-shadow: 4px 3px 8px 1px #000000;
    -webkit-box-shadow: 5px 4px 9px 3px #04040475;
    font-family: 'Chivo Mono', monospace;
    font-size: 30px;
}

.container {
    width: 315px;
    height: auto;
    margin: 0 auto;
    border-radius: 15px;
    box-shadow: 4px 3px 8px 1px #303030;
    -webkit-box-shadow: 4px 3px 8px 1px #353535a1;
}

body {
    font-family: 'Chivo Mono', monospace;
    background-color: #2e2d2da2;
}