html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: monospace;
}

a {
    color: black;
    text-decoration: none;
    border: 1px dashed rgba(0, 0, 0, 0.4);
    padding: 3px;
    line-height: 25px;
}

a:hover {
    border: 1px dotted #000;
}

.wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: #eef;
}

.content-card {
    width: 600px;
    background-color: #eee;
    padding: 20px;
    border: 1px solid rgba(0, 0, 0, 0.4);
    box-shadow: var(--shadow-x, 1px) var(--shadow-y, 1px) 10px rgba(0, 0, 0, 0.4);
}

.light {
    position: absolute;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0) 80%);
    pointer-events: none;
    top: var(--light-y, 0);
    left: var(--light-x, 0);
}