*{
    margin:0;
    padding:0;  
    font-family: 'Prompt', sans-serif;
}
.header{
  
                margin:4px, 4px;
                padding:4px;
                background-color: green;
                width: 500px;
                height: 110px;
                overflow-x: hidden;
                overflow-y: auto;
                text-align:justify;
  

    min-height: 100vh;
    width: 100%;
    background-image: linear-gradient(rgba(4,9,30,0.7),rgba(4,9,30,0.7) ), url(../imagesoblig1/banner.jpg);
    background-position: center;
    background-size: cover;
    position: relative;
}



 
   nav{
    display: flex;
    padding: 2% 6%;
    justify-content: space-between;
    align-items: center;

   } 
   nav img{
    width: 150px;
    height: 140px;
   }
   .nav-links{
    flex: 1;
    text-align: right;
   }
   .nav-links ul li{
    list-style: none;
    display: inline-block;
    padding: 8px 12px;
    position: relative;
   }

   .nav-links ul li a{
    text-decoration: none;
    font-size: 13px;
    color: aliceblue;

   }
   .nav-links ul li::after{
    content: '';
    width: 0%;
    height: 2px;
    background: white;
    display: block;
    margin: auto;
    transition: 0.5s;
   }
   .nav-links ul li:hover::after{
    width: 100%;
   }
   .text-box{
    width: 90%;
    color: aliceblue;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    text-align: center;
    
   }
   .text-box h1{
    font-size: 62px;
   }
   .text-box p{
    margin: 10px 0 40px;
    font-size: 14px;
    color: aliceblue;
   }

   .text-boxen1{
    width: 85%;
    color: aliceblue;
    position: absolute;
    top: 70%;
    left: 83%;
    transform: translate(-50%,-50%);
    text-align: flex

 

}


   .text-boxen2{
    width: 83%;
    color: aliceblue;
    position: absolute;
    top: 80%;
    left: 88%;
    transform: translate(-50%,-50%);
    text-align: flex;
    
   }

    .hero-btn{
    display: inline-block;
    text-decoration: none;
    color: aliceblue;
    border: 1px solid white;
    padding: 12px 34px;
    font-size: 13px;
    background: transparent;
    position: relative;
    cursor: pointer;
   }
   
   @media (max-width: 700px){
        .text-box h1{
            font-size: 20px;
        }
        .nav-links ul li{
            display: block;
        } 
        .nav-links{
            position: absolute;
            background: transparent;
            height: 100vh;
            width: 200px;
            top: 0;
            right: 0;
            text-align: left;
            z-index: 2;}

        .course-col{
            flex-basis: 31%;
            background: #fff3f3;
            border-radius: 10px;
            margin-bottom: 5%;
            padding: 20px;
            box-sizing: border-box;


        }

        
    
    }

   /* ---- Course -----*/
.course{
    width: 80%;
    margin: auto;
    text-align: center;
    padding-top: 100px;

}
h1{
    font-size: 36px;
    font-weight: 600;
}

p{
    color: grey;
    font-size: 14px;
    font-weight: 300;
    line-height: 22px;
    padding: 10px;
}
.row{
    margin-top: 5%;
    display:list-item;
    justify-content: space-between;
   
   
}