fix: fix invalid html output (#642)

Hydrophobefireman

2023-12-28 233d4b2f2c7dda62355382fb02760822c01e9ca2

 quartz/styles/base.scss

@@ -332,7 +332,6 @@
  border-radius: 5px;
  overflow-x: auto;
  border: 1px solid var(--lightgray);
  position: relative;

  &:has(> code.mermaid) {
    border: none;