.grid {
  display: grid;
}
.a, 
.b, 
.c::selection, 
.d:read-only, 
.e::placeholder {
  color: yellow;
}
::selection {
  color: red;
}
:read-only {
  color: black;
}
.f:read-write, 
.g:read-write {
  background: #fff;
}
.example:any-link:read-only {
  color: red;
}
.element1:focus, 
.element1:read-only {
  background-color: red;
}
.c::selection {
  -webkit-backface-visibility: visible;
  backface-visibility: visible;
}