obsidian.css

div:not(.CodeMirror-activeline) > .CodeMirror-line span.cm-blockid {
  visibility: hidden;
}

.cm-blockid::first-letter
{
  visibility: visible;
  font-weight: 800;
}

div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-formatting-task.cm-meta,
div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-formatting-task.cm-property {
    color: transparent;
    position: relative;
}

div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-formatting-task.cm-meta:after,
div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-formatting-task.cm-property:after {
    content: "☐";
    position: absolute;
    top: -6px;
    left: -3px;
    color: var(--text-normal);
    font-size: 22px;
    font-weight: 100;
}

div:not(.CodeMirror-activeline)>.CodeMirror-line .cm-formatting-header {
    display: none !important;
}

div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-formatting-task.cm-property:after {
    content: "☒";
}

.cm-link {
	color: var(--text-accent) !important;
}

.cm-url {
	color: var(--text-muted) !important;
}

div:not(.CodeMirror-activeline)>.CodeMirror-line .cm-formatting-header {
	display: none;
}

/* Hide Bold, Italic, Strikethrough Syntax */    
div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-formatting-strong,
div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-formatting-em,
div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-formatting-strikethrough{ 
	display: none !important;
}


/* Remove markdown clutter */
div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-string.cm-url,
div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-formatting-link,
div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-formatting-link:not(.cm-link),
div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-hmd-barelink,
div:not(.CodeMirror-activeline)>.CodeMirror-line span.cm-tag {
    display: none !important;
}

/* Turn -lists into bullets as you type*/
span.cm-formatting-list-ul {
  visibility: hidden !important;
}

span.cm-formatting-list-ul:after {
  content: '• ';
  margin-left: -12px;
  color: var(--text-muted) !important;
  visibility: visible !important;
}

span.cm-hmd-indent-in-quote {
    margin-left: 8px;
}