style.css

.container {
    display: grid;
    justify-content: center;
    align-content: center;
    grid-template-columns: repeat(4, 100px);
    grid-template-rows: minmax(100px, auto) repeat(5, 100px);
    min-height: 100vh;
}

button {
    cursor: pointer;
    outline: none;
    font-size: 20px;
    background-color: white;
    border: 3px solid #333;
}

button:hover {
    background-color: rgba(225, 225, 225, 70);
    color: white;
}

.output {
    grid-column: 1 / -1;
    background-color: #333;
    border-radius: 20px 20px 0 0;
    word-wrap: break-word;
    word-break: break-all;
    -ms-word-break: break-all;
    -ms-word-wrap: break-word;
}

.overoutput {
    background-color: rgb(42, 101, 128);
    padding-right: 10px;
    padding: 10px;
    text-align: end;
    font-size: 20px;
    color: rgba(225, 225, 225, 100);
    min-height: 25px;
}

.tempoutput {
    background-color: #333;
    color: #fff;
    font-size: 20px;
    padding: 10px;
    min-height: 25px;
}

.underoutput {
    padding: 20px;
    text-align: end;
    font-size: 30px;
    color: white;
    min-height: 50px;
}

.title {
    text-align: center;
    height: 40px;
    padding-top: 10px;
    font-size: 25px;
    color: white;
}