Here you go… apologies or the delay. I no longer use this snippet for my quotes, so I had to reconstruct it. This snippet works in both edit and preview modes. It is probably a mess if you know anything about css (I know just enough to be dangerous):
.cm-quote {
color: var(--text-normal) !important;
}
.markdown-preview-view blockquote {
background-color: transparent;
border: 0px solid;
border-color: rgb(126, 124, 124) !important;
border-left-width: 8px !important;
border-radius: 20px 8px 8px 20px;
font-family: sans-serif;
color: black;
font-size: 15px;
font-style: italic;
line-height: 1.5em;
margin: 0 10px;
padding-top: 12px;
padding-bottom: 13px;
}
div:not(.CodeMirror-activeline)>.HyperMD-quote {
background-color: transparent;
border: 0px solid;
border-color: rgb(126, 124, 124) !important;
border-left-width: 8px !important;
border-radius: 20px 8px 8px 20px;
font-family: sans-serif;
color: black;
font-size: 15px;
font-style: italic;
line-height: 1.5em;
margin: 0 10px;
padding-top: 12px;
padding-bottom: 13px;
}