body {background-color: black;
font-family: 'Poppins', sans-serif;
color: white;
}



/* The Side Bar Navigation */
.sidebar {
    margin: 0;
    padding: 0;
    width: 200px;
    background-color: black;
    position: fixed;
    height: 100%;
    overflow: auto;
}

/* Sidebar Links */
.sidebar a {
    display: block;
    color: white;
    padding: 14px;
    text-decoration: none;
    font-family: 'Gruppo', sans-serif;
}

/* Active/current link */
.sidebar a.active {
    background-color: blueviolet;
    color: white;
}

/* Links on mouse-over*/
.sidebar a:hover:not(.active) {
    background-color: red;
    color: white;
}

/* Page content. El valor de la propiedad del margen izquierdo debe empatar con el valor del width del side's bar */
div.content {
    margin-left: 200px;
    padding: 1px 16px;
    position: relative;
    text-align: center;
    color: white;
}

/* On screens that are less than 400px, display the bar vertically instead of horizontally */
@media screen and (max-width: 400px) {
    .sidebar a {
        text-align: center;
        float: none;
    }
    
}

.section {
  text-align: center;
  padding-left: 200px;
  padding-bottom: 50px;

}

.header1 {
  position: relative;
    padding-right: 30px;
    padding-bottom: 50px;
    color: blueviolet;
    text-align: right;
       
}

.header {
  position: relative;
    padding: 30px;
    color: blueviolet;
    text-align: right;
       
}

.footer {
  padding-left: 200px;
  padding-top: 200px;
  text-align: center;
}



  
.row {
    display: -ms-flexbox; /* IE10 */
    display: flex;
    -ms-flex-wrap: wrap; /* IE10 */
    flex-wrap: wrap;
    padding: 0 4px;
  font-size: 3vw;
  }
  
  /* Create four equal columns that sits next to each other */
  .column {
    -ms-flex: 33.3%; /* IE10 */
    flex: 33.3%;
    max-width: 33.3%;
   
  
  }
  
  .column img {
    margin-top: 8px;
    vertical-align: middle;
    width: 100%;
  
  }
  
  /* Responsive layout - makes a two column-layout instead of four columns */
  @media screen and (max-width: 800px) {
    .column {
      -ms-flex: 50%;
      flex: 50%;
      max-width: 50%;
    }
  }
  
  /* Responsive layout - makes the two columns stack on top of each other instead of next to each other */
  @media screen and (max-width: 600px) {
    .column {
      -ms-flex: 100%;
      flex: 100%;
      max-width: 100%;
    }
  }
  
  .polaroid {
    width: 100%;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    margin-bottom: 25vw;
  
  }