.san-tit-text h2 {
  font-size: 42px;
  line-height: 1.4;
  color: #fff;
  text-align: center;
   text-shadow: -1px -1px 0 #000000, 1px -1px 0 #000000, -1px 1px 0 #000000, 1px 1px 0 #000000;

  /* text-shadow: -1px -1px 0 #a3a3a3, 1px -1px 0 #a3a3a3, -1px 1px 0 #a3a3a3,
    1px 1px 0 #a3a3a3; */
}

.san-tit-text .container {
  padding: 100px 0 80px;
  width: 1400px;
  margin: 0 auto;
}

@media screen and (max-width: 1580px) {
  .san-tit-text .container {
    width: 78%;
  }
  .san-tit-text h2 {
    font-size: 44px;
  }
}

@media screen and (max-width: 960px) {
  .san-tit-text .container {
    width: 88%;
  }
  .san-tit-text h2 {
    font-size: 25px;
    line-height: 40px;
  }

}
@media screen and (max-width: 660px){
    .san-tit-text .container {
    width: 91%;
    padding: 25px 0;
  }
  .san-tit-text h2 {
    font-size: 21px;
    line-height: 40px;
  }
}