html, body {
    margin: 0;
    min-height: 100%;
    background: #000;
    color: #fff;
    font-family: "Courrier New", monospace;
}

button {
    font-family: "Courier New", monospace;
    font-size: 1rem;
    font-weight: bold;

    color: #ffffff;
    background: #000;
    border: 1px solid #ffffff;

    padding: 8px 18px;
    cursor: pointer;

    transition: background 0.15s, color 0.15s;
}

button:hover {
    background: #ffffff;
    color: #000;
}

button:active {
    transform: translateY(1px);
}

.article {
    display: block;
    width: 200px;
    height: 200px;

    margin: 0 auto;
    padding: 15px;

    border: 1px solid #fff;
    background: #000;
    color: #fff;

    text-align: center;
    text-decoration: none;

    transition: background-color 0.2s,
        border-color 0.2s,
        box-shadow 0.2s;
}

.article:hover {
    background: #111;
    border-color: #ffffff;
}

.articles {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.article-title {
    text-align: center;
}

.main-button-div {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.article-text {
    margin-left: 100px;
    margin-right: 100px;
    margin-top: 65px;
}