table, th, td {
border: 2px solid black;}

/* make the table a 100% wide by default */
table {
width: 90%;}

/* if the browser window is at least 800px-s wide: */
@media screen and (min-width: 800px) {
  table {
  width: 90%;}
}

/* if the browser window is at least 1000px-s wide: */
@media screen and (min-width: 1000px) {
  table {
  width: 80%;}
}

span{color:red;}