@import url('https://fonts.googleapis.com/css?family=Muli:300,700&display=swap');

*body{
    box-sizing: border-box;
}

body{
    background-color: #fbfcfe;
    font-family: 'Muli',sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
    margin: 0;
}

.container{
    background-color: #fff;
    border: 3px #000 solid;
    border-radius: 10px;
    padding: 30px;
    max-width: 1000px;
    text-align: center;
}

.code-container{
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 40px 0;
}

.code{
    caret-color: transparent;
    border-radius: 5px;
    font-size: 75px;
    height: 120px;
    width: 100px;
    border: 1px solid #eee;
    margin: 1%;
    text-align: center;
    font-weight: 300;
    -moz-appearance: textfield;
}

.code::-webkit-inner-spin-button{
    -webkit-appearance: none;
    margin: 0;
}
.code:valid{
    border-color: #3498db;
    box-shadow: 0 10px 10px -5px rgba(0,0,0,0.25);
}

.info{
    background-color: #eaeaea;
    display: inline-block;
    padding: 10px;
    line-height: 20px;
    max-width: 400px;
    color: #777;
    border-radius: 5px;
}

@media(max-width:600px){
    .code-container{
        flex-wrap: wrap;
    }
    .code{
        font-size: 60px;
        height: 80px;
        max-width: 70px;
    }
}