Solution: remove "==" around mark
@ -203,15 +203,15 @@ mark {
outline: 4px solid #ffff99;
}
.root mark::before {
content: "==";
color: #999;
.root mark::after {
//.root mark::before {
// content: "==";
// color: #999;
//}
//
//.root mark::after {
.marker, .fold {
user-select: none;