style1.css

@font-face {
    font-family: myFirstFont;
    src: url(Qatar2022Arabic-Bold.ttf);
}
*{
    margin: 0;
    padding: 0;
    font-family:'myFirstFont';
}
header{

    background-image:linear-gradient(rgba(0,0,0,0.5),rgba(0,0,0,0.5)), url(4.JPG);

    background-image:linear-gradient(rgba(0,0,0,0.5),rgba(0,0,0,0.5)), url(2.jpg);

    height: 100vh;
    background-size: cover;
    background-position: center;
}
ul{
    float: right;
    list-style-type: none;
    margin-top: 25px;
}
ul li{
    display: inline-block;
}
ul li a{
    text-decoration: none;
    color: #fff;
    padding: 5px 20px;
    border: 3px solid transparent;
    transition: 0.6s ease;
}
ul li a:hover{
    background-color: #fff;
    color: #000;
}
ul li.active a{
    background-color: #fff;
    color: #000;
}
.logo img{
    float: left;
    width: 150px;
    height: auto;
}
.main{
    max-width: 1400px;
    margin: auto;
    
}
.title{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.title h1{
    color:#fff;
    font-size: 70px;
}
.button{
    position: absolute;
    top: 62%;
    left: 50%;
    transform: translate(-50%,-50%);
}

.btn{
    border: 3px solid #fff;
    padding: 10px 30px;
    color: #fff;
    text-decoration: none;
    transition: 0.6s ease;
    border-radius: 25px;
    font-weight: bold;
}
.btn:hover{
    background-color: #fff;
    color: #000;
}