Space required and Admin Reply color

On the output of the review the top line says

Jun 6, 2019by Joe Scott on Our Site

There needs to be a space after the date or before the word ‘by’

Also the output color of the Admin Reply of blue is very hard to read.
either should be white or set so this can be changed by the site Admin.

I just used this CSS code, but we shouldnt have to resort to this

div.wpcr3_review blockquote.wpcr3_content.wpcr3_admin_response {
margin-left: 30px;
color: #ffffff;
}