styles.css

body, button, input {
    font-family: 'Montserrat', sans-serif;
    cursor: default;
}

body {
    margin: 72px 140px 0;
    background-color: rgba(131, 231, 238, 0.541);
}

h1 {
    font-weight: 800;
    font-size: 74px;
}

#controls {
    display: inline-block;
    width: 46%;
    border-right: 1px solid rgba(0, 0, 0, .5);
    padding-bottom: 42px;
    padding-right: 42px;
}


.input-group {
    margin: 26px 0;
}

label {
    display: inline-block;
    width: 24%;
    font-weight: 200;
    font-size: 30px;
    padding: 12px;
}

input {
    width: 60%;
    font-size: 30px;
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, .5);
    padding-left: 6px;
    font-weight: 200;
    outline: none;
}

input:disabled {
    background-color: white;
    opacity: .6;
}

button {
    padding: 12px 62px;
    background-color: #222;
    color: white;
    border: none;
    outline: none;
}

button:hover {
    opacity: .9;
}

button:disabled {
    opacity: .3;
}

h2 {
    display: inline-block;
    vertical-align: top;
    font-weight: 200;
    font-size: 144px;
    margin: 12px 0;
    padding-left: 100px;
}
/*Styled the txt id*/

#txt {
    font-size: 23px;
    font-weight: 900;
}