* {
box-sizing: border-box;
}
body {
font-family: Arial;
padding: 10px;
background: #f1f1f1;
}
/* Header/Blog Title */
header {
background-color: #F1F1F1;
text-align: center;
padding: 20px;
}
header h1 {
font-size: 50px;
}

/* Style the top navigation bar */
nav {
overflow: hidden;
background-color: #333;
}
/* Style the topnav links */
nav a {
float: left;
display: block;
color: #f2f2f2;
text-align: center;
padding: 14px 16px;
text-decoration: none;
}
/* Change color on hover */
nav a:hover {
background-color: #ddd;
color: black;
}


/* Create two unequal columns that floats next to
each other */
/* Left column */
.leftcolumn {
float: left;
width: 75%;
}
/* Right column */
.rightcolumn {
float: left;
width: 25%;
background-color: #f1f1f1;
padding-left: 20px;
}
/* Fake image */
.fakeimg {
background-color: #aaa;
width: 100%;
padding: 20px;
}
/* Add a card effect for articles */
.card {
background-color: white;
padding: 20px;
margin-top: 20px;
}
/* Clear floats after the columns */
.row:after {
content: "";
display: table;
clear: both;
}

/* Footer */
footer {
padding: 20px;
text-align: center;
background: #ddd;
margin-top: 20px;
}

/* For tablets: */
/* Responsive layout - when the screen is less than 800px wide, make the two columns stack on top of each other instead of next to each
other */
@media screen and (max-width: 800px) {
.leftcolumn, .rightcolumn {
width: 100%;
padding: 0;
}
}
/* For mobile phones: */
/* Responsive layout - when the screen is less than 400px wide, make the navigation links stack on top of each other instead of next to each
other */
@media screen and (max-width: 400px) {
nav a {
float: none;
width: 100%;
}
}