style.css

*{
    margin:0cm;
    padding: 0cm;
   overflow: hidden;
}
.wrapper{
    width: 1170px;
    margin: auto ;

}
body{
    background-image: url("image-1.jpg");
    height:100vh;
    -webkit-background-size : cover;
    background-size: cover;
    background-position: center center;
    position:relative;
}

header{
    background: linear-gradient(rgba(0,0,0,0.6),rgba(0,0,0,0.6),url("bus-3.jpeg"));
    height:100vh;
    -webkit-background-size : cover;
    background-size: cover;
    background-position: center center;
    position:relative;
}
.nav-area{
    float : none;
    list-style : none;
    margin: 30px;
}
.nav-area li{
    float: left;
    display: block;
    padding: 8px;
    background-color: #dddddd;
}
.nav-area li a{
    color:#fff;
    text-decoration: none;
    padding : 10px 62px;
    font-family: "Helvetica Neue";
    font-size : 14px;
}
.nav-area li a:hover{
    background: cadetblue;
    columns: #333;
}
.logo img{
    width: 100px;
    float: left;
    height:auto;

}
.welcome-text{
    position: absolute;
    width: 600px;
    height:300px;
    margin: 20% 30%;
    text-align: center;
}
.welcome-text h1{
    text-align: center;
    color: #fff;
    font-size: 30px;
}
.welcome-text a{
    border: 1px solid #333;
    padding:10px 25px;
    text-decoration:cadetblue;
    font-size: 20px;
    margin-top: 20px;
    display: inline-block;
    color:rosybrown;
}
.welcome-text a:hover{
    background: rgb(255, 255, 255);
    color: rgb(50, 168, 133);
    
}
.dropbtn li a{
    display: inline-block;
    color: cadetblue;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
  }
  li a:hover, .dropdown:hover .dropbtn {
    background-color:cadetblue;
  }
  
  li.dropdown {
    display: inline-block;
  }
  
  .dropdown-content {
    display: none;
    position: absolute;
    background-color: #dddddd;
    min-width: 160px;
  }
  
  .dropdown-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
  }
  
  .dropdown-content a:hover {background-color: #f1f1f1;}
  
  .dropdown:hover .dropdown-content {
    display: block;
  }
  .contact-us{
      margin: 30px;
      font-size: 14px;
      width:auto;
      position: absolute;
  }
  .cont-w{
      background-color: #dddddd;
      padding : 15px 5px;

  }
  
.container {
    margin:30px;
    padding: 0 16px;
  }
  .column {
    float: left;
    width: 33.3%;
    margin-bottom: 16px;
    padding: 0 8px;
  }
  
  .card {
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
    margin: 8px;
  }
  
  .about-section {
    padding: 45px;
    text-align: center;
    background-color: #248588;
    color: white;
  }
  .about-whole, .about-whole::before, .about-whole::after{
    
        font-family: Arial, Helvetica, sans-serif;
        margin: 30px;
      
      
        box-sizing: border-box;
        box-sizing: inherit;
  }