style.css

@import url('https://fonts.googleapis.com/css?family=Asap:400,500,700');

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

header {
    background: white;

}

header > h1 {
    color: #25272E;
    text-align: center;
    font-size: 40px;
    font-family: 'Asap', sans-serif;
}

body {
    background-color: #292c34;
}

.BoxText {
    padding: 100px 0px;
    position: relative;
    text-align: center;
    font-family: 'Asap', sans-serif;
}

#cpfText {
    color: white;
    font-size: 24px;
    text-align: center;
    position: relative;
}

#cpfInput {
    position: relative;
    width: 30%;
    padding: 8px 30px;
    margin: 10px;
    margin-left: 100px;
    border: 3px rgb(22, 23, 27);
    border-radius: 5px;
    text-align: center;
    font-size: 24px;
    color: gray;
    
}

#myBtn {
    font-size: 24px;
    position: relative;
    padding: 8px;
    border-radius: 5px;
    background-color: lightgray;
    border: 0px;
    transition: all 0.3 ease;
}

#myBtn:hover {
    background-color: gray;
    cursor: pointer;
}

.Result {
    padding: 0px;
    text-align: center;
    
}

#verif {
    color: white;
    font-family: 'Asap', sans-serif;
    font-size: 25px;
    font-weight: bold;
}