Hello,
To fix blocks displaying try this css code in custom.css:
li.current.error {
border: none !important;
line-height: inherit !important;
}
As for background colors of error messages use the following code:
.wizard > .content > .body input.error {
background: white !important;
}
.wizard > .content > .body label.error {
background-color: white !important;
}
How to create custom.css you can watch in this tutorial
Best regards,
Jack Richardson.















