* {
    box-sizing: border-box;
}

body {
  margin: 0;
}

/* Style the header */
.header {
    background-color: #f1f1f1;
    padding: 20px;
    text-align: center;
}

/* Style the top navigation bar */
.topnav {
    overflow: hidden;
    background-color: #333;
}

/* Style the topnav links */
.topnav a {
    float: left;
    display: block;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

/* Change color on hover */
.topnav a:hover {
    background-color: #ddd;
    color: black;
}

/* Create three equal columns that floats next to each other */
.column1 {
    float: left;
    width: 25%;
    padding: 15px;
    background-color: #fff;
}

.column2 {
    float: left;
    width: 50%;
    padding: 15px;
    margin-top: 50px;
    background-color: #fff;
}

.column3 {
    float: right;
    width: 25%;
    padding: 15px;
    background-color: #fff;
}

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

.body_section {
    background-color: #fff;

}

/* Responsive layout - makes the three columns stack on top of each other instead of next to each other */
@media screen and (max-width:600px) {
    .pic_column {
        width: 100%;
    }
}

.pic_row {
	display: flex;
	padding-bottom: 2em;
}

.pic_column {
	flex:	40%;
}

.landscape {
	max-width: 90%;
}

.portrait {
	max-width: 90%;
}