:root {
  --slate-grey: #76828b;
  --white: white;
  --gainsboro: #e6e4e4;
  --text1: #636363;
}

.container {
  margin-top: 15px;
}

.button1 {
  text-align: center;
  background-color: red;
  width: 160px;
  height: 160px;
  padding: 0;
}

.button1.button-background {
  width: 160px;
  height: 160px;
}

.button2 {
  text-align: center;
  width: 160px;
  height: 160px;
  padding: 0;
}

.button2.button-background {
  width: 160px;
  height: 160px;
}

.button3 {
  text-align: center;
  background-color: #ffc800;
  width: 160px;
  height: 160px;
  padding: 0;
}

.button4 {
  text-align: center;
  background-color: #2ab600;
  width: 160px;
  height: 160px;
  padding: 0;
}

.button5, .button6, .button7, .button8 {
  background-color: var(--slate-grey);
  text-align: center;
  width: 160px;
  height: 160px;
  padding: 0;
}

.body {
  background-color: var(--white);
  text-align: center;
}

.button {
  background-color: var(--white);
  background-image: url('../images/GTDC_logo2.jpg');
  background-position: 50%;
  background-repeat: no-repeat;
  background-size: contain;
  background-attachment: scroll;
  width: 160px;
  height: 200px;
  box-shadow: 2px 0 7px #00000063;
}

.container-2 {
  clear: left;
  position: relative;
}

.navbar {
  background-color: var(--gainsboro);
}

.brand {
  background-color: #f7f7f7;
  width: 160px;
}

.text-block {
  float: right;
  clear: both;
  color: var(--text1);
  text-align: left;
  margin-top: 49px;
  margin-bottom: 40px;
  margin-right: 140px;
  padding-top: 0;
  padding-left: 0;
  font-family: Open Sans, sans-serif;
  font-size: 40px;
  font-weight: 300;
  line-height: 50px;
  display: block;
}

.section {
  background-color: var(--gainsboro);
  margin-top: 56px;
}

.html-embed, .html-embed-2, .html-embed-3 {
  text-align: center;
}

.image {
  text-align: center;
  margin-top: 156px;
}

@media screen and (max-width: 991px) {
  .container {
    text-align: center;
    padding-left: 129px;
  }

  .columns {
    width: 480px;
    margin-left: 0;
    margin-right: 0;
  }

  .column, .column-2, .column-3 {
    padding-left: 0;
    padding-right: 0;
  }

  .column-4 {
    padding-left: 0;
  }

  .column-5, .column-6, .button {
    padding-left: 0;
    padding-right: 0;
  }

  .container-2 {
    padding-left: 119px;
  }

  .brand {
    margin-left: 119px;
    padding-left: 0;
  }

  .text-block {
    float: right;
    width: 500px;
    margin-top: 58px;
    margin-bottom: 39px;
    margin-right: -91px;
    font-size: 26px;
    line-height: 35px;
  }

  .image {
    margin-top: 214px;
  }
}

@media screen and (max-width: 767px) {
  .container {
    text-align: center;
    margin-top: 193px;
    padding-left: 120px;
  }

  .columns {
    text-align: center;
    width: 320px;
  }

  .column-4 {
    padding-right: 0;
  }

  .column-5 {
    padding-left: 0;
    padding-right: 0;
  }

  .column-6 {
    padding-left: 0;
    padding-right: 0;
    overflow: auto;
  }

  .container-2 {
    position: static;
  }

  .text-block {
    margin: 25px -51px 10px 0;
    padding-left: 0;
    position: fixed;
  }

  .image {
    margin-top: 64px;
  }
}

@media screen and (max-width: 479px) {
  .container {
    z-index: auto;
    clear: none;
    padding-left: 27px;
    position: fixed;
    left: 0;
  }

  .columns {
    float: none;
    clear: left;
    text-align: center;
    width: 320px;
    margin-left: 0;
    padding-left: 0;
    position: static;
    inset: 0% 0% 0% 17%;
  }

  .body {
    text-align: center;
  }

  .container-2 {
    padding-left: 0;
  }

  .brand {
    padding-left: 0;
    display: none;
    overflow: visible;
  }

  .text-block {
    margin-right: -195px;
    padding-left: 27px;
    font-size: 20px;
    line-height: 30px;
  }

  .section {
    margin-top: 244px;
    position: relative;
  }

  .image {
    margin-top: 178px;
  }
}