* {
  box-sizing: border-box;
}
/* Add a gray background color with some padding */
body {
  font-family: Arial;
  margin:0;
  text-align: center;
  background: #f1f1f1;
}

/* Header/Blog Title */
.header {
  padding: 30px;
  font-size: 40px;
  text-align: center;
  background: #3c3d3e;
}

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

/* Create two equal columns that floats next to each other */
.column {
  float: left;
  width: 100%;
  padding: 10px;
}

.row{
  padding:20px;
}

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