将<input type = submit按钮的CSS样式恢复为其默认样式

input[type="submit"] {
  all: unset;
}

input[type="submit"] {
  background-color: ButtonFace;
  border: 2px outset ButtonFace;
  color: ButtonText;
  font: 400 13.3px Arial;
  padding: 2px 6px 3px;
  text-align: center;
  cursor: default;
}