body {
    width: 100%;
    margin: 0px;
    padding: 0px;
    font-family: Roboto;
}

h1 {
    font-size: 30px;
}

p {
    font-size: 18px;
    text-align: justify;
}

main {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
}

.welcomeArea {
    width: 100%;
    height: 90vh;
    display: flex;
    justify-content: center;
    color: rgb(255, 255, 255);
    background-image: url("../images/mainPage/america-2800896_1920.jpg");
    background-position: center;
    background-size: cover;
    box-shadow: 8px 8px 6px rgba(0, 0, 0, 0.3);
}

.mainLinks {
    display: flex;
    justify-content: space-between;
    flex-direction: column;
    flex-wrap: wrap;
}

.textBox {
    width: 90%;
    height: 60%;
    padding: 2%;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.8);
}

.linkText {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: start;
    color: rgba(255, 255, 255, 0);
}

.linkText:hover {
    background-color: rgba(0, 0, 0, 0.8);
    color: rgba(255, 255, 255, 1);
}

.linkText p, h1 {
    padding: 2%;
}

.contentBoxBlog, .contentBoxTools, .contentBoxResearch, .contentBoxVeroeffentlichung {
    width: 100%;
    height: 75vh;
    background-size: cover;
    text-decoration: none;
    color: rgb(255, 255, 255);
    box-shadow: 8px 8px 6px rgba(0, 0, 0, 0.3);
}

.contentBoxBlog {
    background-image: url("../images/mainPage/cup-of-coffee-1280537_1920.jpg");
}

.contentBoxTools {
    background-image: url("../images/mainPage/code-3337044_640.jpg");
}

.contentBoxResearch {
    background-image: url("../images/mainPage/modern-technologies-1263422_1920.jpg");
}

.contentBoxVeroeffentlichung {
    background-image: url("../images/mainPage/books-2606859_1920.jpg");
}

/* -------------------------------------------------- */

/* Tablets */
@media (min-width: 481px) {

    .textBox {
        height: 40%;
    }
}

/* Desktop-Pc */
@media (min-width: 1024px) {

    main {
        display: flex;
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }

    .welcomeArea {
        width: 100%;
        height: 90vh;
        display: flex;
        justify-content: left;
    }

    .mainLinks {
        justify-content: center;
        flex-direction: row;
    }

    .textBox {
        width: 50%;
        margin-top: 2%;
        margin-left: 2%;
    }

    .contentBoxBlog, .contentBoxTools, .contentBoxResearch, .contentBoxVeroeffentlichung {
        width: 90%;
        height: 50vh;
        margin-top: 2%;
        margin-bottom: 2%;
    }
}