#openChecker div form p:nth-child(2) input[type="submit"],
a.check_downoad {
    background-color: #0c71c3;
    padding: 10px 10px;
    color: #fff !important;
    display: block;
    text-align: center;
    margin: auto;
    font-weight: bold;
}

a.check_downoad {
    max-width: 300px;
}

#openChecker div form p:nth-child(2) input[type="submit"] {
    width: 100%;
    margin: 0;
    border: 0;
}

.modalDialog {
    position: fixed;
    font-family: Arial, Helvetica, sans-serif;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 99999;
    opacity: 0;
    -webkit-transition: opacity 400ms ease-in;
    -moz-transition: opacity 400ms ease-in;
    transition: opacity 400ms ease-in;
    pointer-events: none;
}

.modalDialog:target {
    opacity: 1;
    pointer-events: auto;
}

.modalDialog > div {
    width: 50%;
    position: relative;
    margin: 10% auto;
    padding: 20px 20px 10px 20px;
    border-radius: 10px;
    background: #fff;
    border: 4px solid #afafaf;
}

.close {
    background: #fff;
    color: red !important;
    line-height: 25px;
    position: absolute;
    right: -12px;
    text-align: center;
    top: -10px;
    width: 24px;
    text-decoration: none;
    font-weight: bold;
    -webkit-border-radius: 12px;
    -moz-border-radius: 12px;
    border-radius: 12px;
    -moz-box-shadow: 1px 1px 3px #000;
    -webkit-box-shadow: 1px 1px 3px #000;
    box-shadow: 1px 1px 3px #000;
}

.close:hover {
    background: #00d9ff;
}

/* Smartphones (portrait and landscape) ----------- */
@media only screen and (min-device-width: 320px) and (max-device-width: 480px) {
    .modalDialog > div {
        width: 300px;
    }
}

/* iPads (portrait and landscape) ----------- */
@media only screen and (min-device-width: 768px) and (max-device-width: 1024px) {
    .modalDialog > div {
        width: 50%;
    }
}

/* Desktops and laptops ----------- */
@media only screen  and (min-width: 1224px) {
    .modalDialog > div {
        width: 522px;
    }
}

/* Large screens ----------- */
@media only screen  and (min-width: 1824px) {
    .modalDialog > div {
        width: 522px;
    }
}