style.css

*{
    margin: 0;
    padding: 0;
}
.header{
    min-height: 100vh;
    width: 100;
    background-image: linear-gradient(rgba(27, 54, 160, 0.7),rgba(4,9,30,0.7)),url(IMG_5488.PNG);
    background-position: center;
    background-size: cover; 
    position: relative;
}
nav{
    display: flex;
    padding: 2%;
    justify-content:space-between ;
    align-items: center;
}
nav img{
    width: 250px;
}
.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{
    color: white;
    text-decoration: none;
    font-size: 13px;
}
  .nav-links ul li::after{
    content:"" ;
    width: 0%;
    height: 2px;
    background: #f44336;
    display: block;
    margin: auto;
     }  
  .nav-links ul li:hover::after{
    width: 100%;
    transition: 0.5s;
}
text-box{
    width: 90%;
    color: #fff;
    position: absolute;
    top: 50%;
    left: 30%;
    transform:translate(-30%,-50%) ;
    text-align: center;
}
.text-box h1{
    font-size: 62px;
}
.text-box p{
    margin: 10px 0 40px;
    font-size: 14px;
    color: #fff;
}
.hero{