@media only screen and (max-width: 640px) {
  #cs_wrap {
    margin: 0px;
    padding: 0px;
  }

  .dark #cs_wrap {
    background-color: #343438;
    color: #fff;
  }

  #cs_content {
    margin: 0px 15px;
    padding: 40px 0px;
    width: 90%;
    line-height: 1.25;
  }

  #cs_content .cs_headline1 {
    display: block;
    color: #333333;
    font-size: 24px;
    margin: 0 0 25px;
  }

  .dark #cs_content .cs_headline1 {
    color: #fff;
  }

  #cs_content .cs_para1 {
    display: block;
    color: #2f353d;
    font-size: 14px;
    margin: 0 0 45px;
  }

  .dark #cs_content .cs_para1 {
    color: #fff;
  }

  /* cs_btn1 */
  #cs_content .cs_btn1 {
    display: block;
    color: #FFF;
    background-color: #2d75c7;
    text-decoration: none;
    padding: 1em 2.5em;
    font-size: 14px;
    text-align: center;

    -webkit-transition:background-color 0.25s linear 0s, color 0.25s linear 0s;
    -moz-transition:background-color 0.25s linear 0s, color 0.25s linear 0s;
    -o-transition:background-color 0.25s linear 0s, color 0.25s linear 0s;
    transition:background-color 0.25s linear 0s, color 0.25s linear 0s;
  }

  #cs_content .cs_btn1:hover {
    background-color: #4572ED;
  }

  .dark #cs_content .cs_btn1 {
    color: #FFF;
    background-color: #2d75c7;
  }

  /* link color */
  #cs_content .cs_para1 a {
    color: #5787F4;
    text-decoration: none;
  }
  #cs_content .cs_para1 a:hover {
    color: hsl(223, 32%, 35%);
  }
}

@media only screen and (min-width: 641px) {
  #cs_wrap { 
    position: relative;
  }
  
  .dark #cs_wrap {
    background-color: #343438;
    color: #fff;
    position: relative;
  }

  #cs_content {
    padding: 80px 0px;
    max-width: 1190px;
    width: 100%;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    margin: 0 auto;
    position: relative;
  }

  #cs_content .cs_headline1 {
    margin: 0 0 25px;
    font-size: 30px;
  }

  .dark #cs_content .cs_headline1 {
    color: #fff;
  }

  #cs_content .cs_para1 {
    color: #2f353d;
    display: block;
    margin: 0 0 45px;
    line-height: 1.5em;
  }

  .dark #cs_content .cs_para1 {
    color: #fff;
  }

  /* cs_btn1 */
  #cs_content .cs_btn1 {
    display: inline;
    color: #FFF;
    background-color: #2d75c7;
    margin: 0 0 15px;
    padding: 1em 2.5em;
  }

  .dark #cs_content .cs_btn1 {
    color: #FFF;
    background-color: #2d75c7;
  }
}