style.css

:root {
  --dark-gray: #555555;
  --gray: #7F7F7F;
  --medium-gray: #CCCCCC;
  --light-gray: rgba(0,0,0,0.08);
}


html, body {
  padding: 0;
  margin: 0;
}

* {
  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
    monospace;
  text-decoration: none;
}

.App {
  width:100vw;
  height:100vh;
  display: flex;
  justify-content: center;
  padding-top: 4rem;
}

.CodeMirror {
  padding: 16px;
  height: 100vh !important;
  max-width: 700px;
  width: 700px !important;
  cursor: text;
  font-size: 12px;
  line-height: 20px;
}

.CodeMirror-selected { background:#BAE3FE !important; }


.CodeMirror pre {
  /* padding-top: 4px !important;
  padding-bottom: 4px !important; */
  /* height: 16px; */
}

/* .CodeMirror-line {
  margin-top: 4px !important;
  margin-bottom: 4px !important;
} */



.cm-s-tlon span.cm-meta { color: var(--gray); }
.cm-s-tlon span.cm-number { color: var(--gray); }
.cm-s-tlon span.cm-keyword { line-height: 1em; font-weight: bold; color: var(--gray); }
.cm-s-tlon span.cm-atom { font-weight: bold; color: var(--gray); }
.cm-s-tlon span.cm-def { color: black; }
.cm-s-tlon span.cm-variable { color: black; }
.cm-s-tlon span.cm-variable-2 { color: black; }
.cm-s-tlon span.cm-variable-3, .cm-s-tlon span.cm-type { color: black; }
.cm-s-tlon span.cm-property { color: black; }
.cm-s-tlon span.cm-operator { color: black; }
.cm-s-tlon span.cm-comment { color: black; background-color: var(--light-gray); padding:2px; border-radius: 2px;}
.cm-s-tlon span.cm-string { color: var(--dark-gray); }
.cm-s-tlon span.cm-string-2 { color: var(--gray); }
.cm-s-tlon span.cm-qualifier { color: #555; }
.cm-s-tlon span.cm-error { color: #FF0000; }
.cm-s-tlon span.cm-attribute { color: var(--gray); }
.cm-s-tlon span.cm-tag { color: var(--gray); }
.cm-s-tlon span.cm-link { color: var(--dark-gray); text-decoration: none;}
.cm-s-tlon .CodeMirror-activeline-background { background: var(--gray); }
.cm-s-tlon .CodeMirror-cursor {
  border-left: 2px solid #3687FF;
}

.cm-s-tlon span.cm-builtin { color: var(--gray); }
.cm-s-tlon span.cm-bracket { color: var(--gray); }
/* .cm-s-tlon  { font-family: Consolas, Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono, Bitstream Vera Sans Mono, Courier New, monospace, serif;} */


.cm-s-tlon .CodeMirror-matchingbracket { outline:1px solid grey; color:black !important; }

.CodeMirror-hints.tlon {
  /* font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; */
  color: #616569;
  background-color: #ebf3fd !important;
}

.CodeMirror-hints.tlon .CodeMirror-hint-active {
  background-color: #a2b8c9 !important;
  color: #5c6065 !important;
}