@media screen and (max-width: 1000px){
    .header {
        position: sticky;
        top: 0;
        z-index: 9998!important;
    }
    .logo {
        width: 30%;
    }
    .dropbtn {
        display: flex;
        margin: 0 auto;
        font-family: 'Montserrat', sans-serif;
        font-weight: 500;
        font-size: 40px;
        color: #00b2e1;
        cursor: pointer;
        border-radius: 15px;
        border: none;
        padding: 0;
    }
    .dropbtn:hover, .dropbtn:focus {
        background-color: #dfeef6;
        border-radius: 15px;
    }
    .nav {
        position: relative;
        display: inline-block;
    }
    .nav_links {
        display: none;
        position: absolute;
        min-width: 160px;
        background-color: white;
        z-index: 1;
        border-radius: 10px;
    }
    .nav_links a {
        color: black;
        padding: 12px 16px;
        text-decoration: none;
        display: block;
    }
    .show {display: block}

    body {
        background-image: url("/img/back_1000.jpg");
        background-size: 100%;
    }
    .main_block {
        margin: 30% auto;
    }
    .main_block img {
        display: none;
    }

    .main h3 {
        color: #fcfffd;
        margin-top: 5em;
    }

    #join {
        color: #fcfffd;
    }
    #headline {
        display: block;
        position: initial;
    }
    .criteria{
        display: block;
        width: 100%;
        position: relative;
    }

    .criteria_list li {
        width: 45%;
        position: relative;
        display: inline-block;
        font-size: 32px;
    }
    .card footer {
        height: 150px;
    }
    .p1, .p2, .p3 {
        display: block;
        width: 90%;
        padding: 1%;
    }
    .description p {
        margin: 5% auto;
        padding: 5%;
    }
    .description img{
        width: 100%;
        height: auto;
        border-radius: 1em 1em 0 0;
        margin-bottom: 3%;
    }
    td {
        color: #dfeef6;
    }
}