console.log("Hello World");

code[data-line-numbers] {
  counter-reset: line;
}
 
code[data-line-numbers] > [data-line]::before {
  counter-increment: line;
  content: counter(line);
 
  /* Other styling */
  display: inline-block;
  width: 0.75rem;
  margin-right: 2rem;
  text-align: right;
  color: gray;
}
 
code[data-line-numbers-max-digits="2"] > [data-line]::before {
  width: 1.25rem;
}
 
code[data-line-numbers-max-digits="3"] > [data-line]::before {
  width: 1.75rem;
}
 
code[data-line-numbers-max-digits="4"] > [data-line]::before {
  width: 2.25rem;
}