Никита

@font-face {
  font-family: 'OpenSans';
  src: url("../fonts/OpenSans/OpenSansRegular/OpenSansRegular.eot");
  ...
  font-weight: 400;
  font-style: normal;
}
@font-face {
  font-family: 'OpenSans';
  src: url("../fonts/OpenSans/OpenSansLight/OpenSansLight.eot");
  ...
  font-weight: 300;
  font-style: normal;
}

html {
  font-family: 'OpenSans', sans-serif;
  font-size: 14px;
}

.example-with-regular-text {
  // nothing
}

.example-with-light-text {
  font-weight: 300;
}

$string1 = "5 шт за 1000 руб";
$count1 = (float)$string1;

$date_str = '2017-10-09T14:16:03.015+03:00';
$date = new DateTime($date_str);

print_r($date);