/* CSS Document */

* {
  box-sizing: border-box;
}

.col-1 {width: 8.33%;}
.col-2 {width: 16.66%;}
.col-3 {width: 25%;}
.col-4 {width: 33.33%;}
.col-5 {width: 41.66%;}
.col-6 {width: 50%;}
.col-7 {width: 58.33%;}
.col-8 {width: 66.66%;}
.col-9 {width: 75%;}
.col-10 {width: 83.33%;}
.col-11 {width: 91.66%;}
.col-12 {width: 100%;}

[class*="col-"] {
  float: left;
  padding: 5px;
  border: 0px solid red;
}

.row::after {
  content: "";
  clear: both;
  display: table;
}

body {
     font-family: 'Arvo', serif;
     margin: 0px;
     padding: 0px;
     background-color: #0077b3;
     color: black;
     height: 140vh;
}

.headerrow {
     background-color: #042749;
     color: blanchedalmond;
     font-family: 'Arvo', serif;
}

p {
     font-size: 20px;
     color: blanchedalmond;
}

h2 {
     color: blanchedalmond;
}

button {
     font-family: 'Arvo', serif;
     padding: 5px 10px;
     color: black;
     font-size: 20px;
     cursor: pointer;
}

.flex-cont-3 > div {
     width: 30%;
     margin: 5px 0.5%;
     padding: 0px;
     border: solid gray 5px;
}

.flex-cont-3 > div:hover {
     border: solid white 5px;
}

.flex-cont-3 {
     display: flex;
     flex-wrap: wrap;
     margin-bottom: 0px;
     justify-content: center;
     font-size: 16px;
}

.fc {
     border: solid gray 5px; 
     box-shadow: 7px 7px 10px black; 
     background-color: burlywood;
}
/*----------------------------------------------------------------*/

@media screen and (max-width: 900px) {
	
  [class*="col-"] {
    width: 100%;
     }
     
    .flex-cont-3 > div {
     width: 90%;
     margin: 0px;
     padding: 0px;
     border: solid gray 3px;
     }
     
     body {
          height: 100vh;
     }
     
     button {
          font-size: 16px;
     }
     
}