.css_failure_page {
    background-color: white;
    min-width:250px;
    max-width:800px;
}
.css_failure_page>h1 {
    font-size: px;
}
.css_failure_page>pre {
    font-size: 16px;
}

.custom_content_block {
    border: solid;
    border-width: 1px;
    padding:30px;
}

.css_center_button {
    display: flex;
    justify-content: center;
}