h2 {
    border-bottom: solid 2px black;
}
h3 {
    border-bottom: dashed 2px black;
}
.result-area{
    padding: 0.5em 1em;
    margin: 2em 0;
    color: white;
    background: black;
    border: solid 1px #dcdcdc;
    border-radius: 10px;
}