{
  box-sizing: border-box;
}

.row {
  margin-left:5px;
  margin-right:5px;
}
  
.column {
  float: left;
  width: 50%;
  padding: 5px;
}

/* Clearfix (clear floats) */
.row::after {
  content: "";
  clear: both;
  display: table;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
  width: 100%;
  border: 1px solid #ddd;
}


@media screen and (max-width: 600px) {
  .column {
    width: 100%;
  }
}