* {
    box-sizing: border-box;
  }
  body {
    font-family: 'Josefin Sans', sans-serif;
    padding: 10px;
    background: #f1f1f1;
    font-size: 20px;
  }
/* Style the header */
.header {
    background-color: white;
    padding: 20px;
    text-align: center;
    color: black;
    font-family: 'Josefin Sans', sans-serif;
    
  } 

  /* Style the top navigation bar */
.topnav {
    overflow: hidden;
    background-color: black;
  }
  
  /* Style the topnav links */
  .topnav a {
    float: left;
    display: block;
    color: white;
    text-align: center;
    padding: 15px 55px;
    text-decoration: none;
    font-size: 20px;
    font-family: 'Josefin Sans', sans-serif;
  }
  
  /* Change color on hover */
  .topnav a:hover {
    background-color: white;
    color: black;
  }
  .button {
    background-color: black;
    border: none;
    color: white;
    padding: 15px 40px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 12px;
    
    
  }

 /* 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 {
  width: 100%;
  padding: 20px;
}
.ads{
  background-color: #aaa;
  padding: 3px;
  margin-top: 20px;
}
.mobads{
  visibility: hidden;
}



/* Add a card effect for articles */
.card {
  background-color: white;
  padding: 15px;
  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;
}

/* 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;
  }
}

/* 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) {
  .topnav a {
    float: none;
    width: 100%;
  }
  .ads{
    padding: 13px;
  }
  .topnav a{
    padding: 15px 0px ;
  }
  .fakeimg{
    visibility: hidden;
  }
  .mobads{
    visibility: visible;
  }
}