.t3-page-ce-element-section-start {
    border: 1px solid; 
    border-image: linear-gradient(0deg, transparent, #2e5266) 1;
}

.t3-page-ce-element-section-end {
    border: 1px solid; 
    border-image: linear-gradient(180deg, transparent, #2e5266) 1; 
}

input#yubikey-otp {
    text-security: disc; /* IE/Safari */
    -moz-text-security: disc; /* FireFox */
    -webkit-text-security: disc; /* Chrome/Safari  */
}

[data-color-scheme="dark"] .topbar-site-logo img {
    filter: grayscale(100%) brightness(0) invert(100%);
}