body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
}

.topnav {
  overflow: hidden;
  background-color: #333;
}

.topnav a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.active {
  background-color: #3232CD;
  color: white;
}

.topnav .icon {
  display: none;
}

section {
	text-align: center;
}

.row1 {
    padding: 50px;
}

#col-1 {
    float: left;
    display: block;
    border-style: solid;
    border-width: 1px;
    margin: 0 0 0 30px;
    width: 25%;
    padding: 20px;
}

#col-2 {
    float: left;
    display: block;
    border-style: solid;
    border-width: 1px;
    margin: 0 5% 0 6%;
    width: 25%;
    padding: 20px;
}

#col-3 {
    float: right;
    display: block;
    border-style: solid;
    border-width: 1px;
    margin: 0 30px 50px 0;
    width: 25%;
    padding: 20px;
}

.clearfix {
  overflow: auto;
  clear: both;
}

footer {
  background-color: #333;
  color: #f2f2f2;
  text-align: center;
  padding: 1px 1px;
}

@media screen and (max-width: 600px) {
  .topnav a:not(:first-child) {display: none;}
  .topnav a.icon {
    float: right;
    display: block;
  }
}

@media screen and (max-width: 600px) {
  .topnav.responsive {position: relative;}
  .topnav.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
  
    #col-1 {
        float: left;
        display: block;
        border-style: solid;
        border-width: 1px;
        margin: 0 0 20px 5%;
        width: 80%;
    }

    #col-2 {
        float: left;
        display: block;
        border-style: solid;
        border-width: 1px;
        margin: 0 0 20px 5%;
        width: 80%;
    }

    #col-3 {
        float: left;
        display: block;
        border-style: solid;
        border-width: 1px;
        margin: 0 0 20px 5%;
        width: 80%;
    }
}