* {
  box-sizing: border-box;
}

body {
  background-color: #f1f1f1;
  
  font-family: Arial;
  margin: 0;
  padding: 0;
}

/* Center website */
.main {
  width: 738px;
  
}



/* Add padding BETWEEN each column */

.row > .column {
  padding: 1px;
}

/* Create three equal columns that floats next to each other */
.column {
  float: left;
  width: 25%;
  display: none; /* Hide all elements by default */
}

/* Clear floats after rows */ 
.row:after {
  content: "";
  display: table;
  clear: both;
}

/* Content */
.content {
  background-color: white;
  
}

/* The "show" class is added to the filtered elements */
.show {
  display: block;
}

/* Style the buttons */
.btn {
border: 2px solid #a42d2e;
padding: 8px 10px;
font-weight: bold;
color: #a42d2e;
 border-radius: 3px;
 background: #fcd9d9;
}

.btn:hover {
  background: #a42d2e;
	color: #fff;
}

.btn.active {
  background-color: #a42d2e;
  color: white;
}

#myBtnContainer {
	margin-bottom: 2px;
}