body {
  font-family: Arial, sans-serif;
  margin: 0;
}

html {
  box-sizing: border-box;
}

*, *:before, *:after {
  box-sizing: inherit;
}

.Btitle {
    background: #87ceeb;
    text-align: center;
    padding: 10px;
    font-size: large;
    border: 1px solid #333;
  }
  
  /* Navigation Bar */
  .topnav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    background: #0D99FF;
    
  }
  
  /* Home Button */
  .home-btn {
    background-color: #ddd;
    font-weight: bold;
    font-size: 20px;
    text-decoration: none;
    color: black;
    padding: 10px 15px;
    border-radius: 10px;
  }
  
  /* Navigation Links */
  .nav-links {
    display: flex;
    gap: 20px;
  }
  
  .nav-links a {
    text-decoration: none;
    color: black;
    font-size: 17px;
    padding: 10px 15px;
    transition: 0.3s;
  }
  
  .nav-links a:hover {
    background-color: #ddd;
    outline: 2px solid #fbff00;
    transform: scale(1.02);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  }
  
  /* Search Box */
  .topnav input[type=text] {
    padding: 6px;
    border: none;
    font-size: 17px;
  }
  
  
  /* Dropdown Menu */
  .dropdown {
    position: relative;
    display: inline-block;
  }
  
  .dropdown-content {
    display: none;
    position: absolute;
    background-color: #f6f6f6;
    min-width: 230px;
    border: 1px solid #ddd;
    z-index: 1;
  }
  
  .dropdown-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
  }
  
  .dropdown a:hover {
    background-color: #ddd;
  }
  
  .show {
    display: block;
  }

.column {
  width: 33.3%;
  margin-bottom: 16px;
  padding: 0 8px;
  display: flex;
  justify-content: center;
}

.card {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
  margin: auto;
  width: 50%;
  padding: 10px;
  
}
.row {
  display: flex;
  justify-content: center; 
  flex-wrap: wrap; 
}


.about-section {
  padding: 50px;
  text-align: center;
  background-color: #87ceeb;
  color: rgb(0, 0, 0);
}

.container {
  padding: 0 16px;
}

.container::after, .row::after {
  content: "";
  clear: both;
  display: table;
}

.title {
  color: grey;
}

.button {
  border: none;
  outline: 0;
  display: inline-block;
  padding: 8px;
  color: white;
  background-color: #000;
  text-align: center;
  cursor: pointer;
  width: 100%;
}

.button:hover {
  background-color: #555;
}

@media screen and (max-width: 650px) {
  .column {
    width: 100%;
    display: block;
  }
}