.custom-logo-link,
.wp-block-site-logo {
    display: inline-flex;
    align-items: center;
}

img.custom-logo,
.custom-logo-link img,
.wp-block-site-logo img {
    display: block;
    width: auto;
    height: auto;
    max-height: 64px;
    object-fit: contain;
}

.site-header img.custom-logo,
header img.custom-logo {
    max-height: 64px;
}