.center-screen{
    position: absolute;
    top: 50%;
    left: 38%;
    margin-top: -50px;
    margin-left: -50px;
    width: 500px;
    height: 200px;
}

div.sticky {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    padding: 5px;
    height: 40px;
    background-color: #100620;
    border: 2px solid #061a52;
    text-align: center;
}

div.right {
    right: 40%;
}

body {
    color: #d7d7d8;
    background-color: #060611;
}
a {
    color: #66bbff;
}
code {
    color: #d5dada;
    background: #313231;
}