li {
  list-style: none;
}
@media only screen and (min-width: 1000px) {

    #pageBanner{
      width: 100%;
      height: 100px;
      line-height: 100px;
      float: left;
      margin: 150px 0 0 0;
      padding: 0;
      display: block;
      opacity: 1;
      color: red;
      font-family: 'Kanit', sans-serif;
      text-align: center;
      font-size: 30px;
      -webkit-text-stroke: 1px black;
         color: white;
         text-shadow:
             3px 3px 0 #000,
           -1px -1px 0 #000,
            1px -1px 0 #000,
            -1px 1px 0 #000,
             1px 1px 0 #000;
         color: white;
      background-size: cover;
      background-position: center;
      background-image: url('../img/banners/aboutUsBanner1_tiny.jpg');
    }
    #pageBanner h1{
      width: 100%;
      height: 100px;
      line-height: 100px;
      background-color: ;
      float: left;
      display: block;
      margin: 0;
      padding: 0;
      font-family: 'Kanit', sans-serif;
      text-align: center;
      font-size: 50px;
    }

    #commercialDiv{
    width: 45%;
    float: left;
    height: auto;
    margin: 0 2.5% 0 2.5%;
    padding: 0;
    text-align: center;
    display: inline-block;
  }
  #commercialDiv h1{
    color: orange;
    width: 100%;
    text-align: left;
    float: left;
  }

  #commercialDiv h2{
    color: blue;
    width: 100%;
    text-align: left;
    float: left;
    font-size: 1.2em;
    line-height: 2em;
  }

  #commercialDiv h3{
    color: black;
    width: 100%;
    text-align: left;
    float: left;
    font-size: 1em;
    line-height: 2em;
  }

  #commercialDivFull{
    width: 45%;
    float: right;
    height: auto;
    margin: 0 2.5% 0 2.5%;
    padding: 0;
    text-align: center;
    display: inline-block;
  }

  #commercialDivFull h1{
    color: orange;
    width: 100%;
    text-align: left;
    float: left;
  }

  #commercialDivFull h2{
    color: blue;
    width: 100%;
    text-align: left;
    float: left;
    font-size: 1.2em;
    line-height: 2em;
  }

  #commercialDivFull h3{
    color: black;
    width: 100%;
    text-align: left;
    float: left;
    font-size: 1em;
    line-height: 2em;
  }
}

@media only screen and (max-width: 1000px) {

  #pageBanner{
    width: 100%;
    height: 100px;
    line-height: 100px;
    float: left;
    margin: 120px 0 0 0;
    padding: 0;
    display: block;
    opacity: 1;
    color: red;
    font-family: 'Kanit', sans-serif;
    text-align: center;
    font-size: 30px;
    -webkit-text-stroke: 1px black;
       color: white;
       text-shadow:
           3px 3px 0 #000,
         -1px -1px 0 #000,
          1px -1px 0 #000,
          -1px 1px 0 #000,
           1px 1px 0 #000;
       color: white;
    background-size: cover;
    background-position: center;
    background-image: url('../img/banners/aboutUsBanner1_tiny.jpg');
  }
  #pageBanner h1{
    width: 100%;
    height: 100px;
    line-height: 100px;
    background-color: ;
    float: left;
    display: block;
    margin: 0;
    padding: 0;
    font-family: 'Kanit', sans-serif;
    text-align: center;
    font-size: 50px;
  }

  #commercialDiv{
    width: 95%;
    float: left;
    height: auto;
    margin: 0 2.5% 0 2.5%;
    padding: 0;
    text-align: center;
    display: inline-block;
  }
  #commercialDiv h1{
    color: orange;
    width: 100%;
    text-align: left;
    float: left;
  }

  #commercialDiv h2{
    color: blue;
    width: 100%;
    text-align: left;
    float: left;
    font-size: 1.2em;
    line-height: 2em;
  }

  #commercialDiv h3{
    color: black;
    width: 100%;
    text-align: left;
    float: left;
    font-size: 1em;
    line-height: 2em;
  }

  #commercialDivFull{
    width: 95%;
    float: right;
    height: auto;
    margin: 0 2.5% 0 2.5%;
    padding: 0;
    text-align: center;
    display: inline-block;
  }

  #commercialDivFull h1{
    color: orange;
    width: 100%;
    text-align: left;
    float: left;
  }

  #commercialDivFull h2{
    color: blue;
    width: 100%;
    text-align: left;
    float: left;
    font-size: 1.2em;
    line-height: 2em;
  }

  #commercialDivFull h3{
    color: black;
    width: 100%;
    text-align: left;
    float: left;
    font-size: 1em;
    line-height: 2em;
  }
}