.background{
    height: 100vh;
    background: url("spacex1.jpg") no-repeat bottom center;
    background-size: cover;

}

.background1{
    height: 120vh;
    background: url("starship.jpg") no-repeat bottom center;
    background-size: cover;
}

.background2{
    height: 120vh;
    background: url("falcon9.jpg") no-repeat bottom center;
    background-size: cover;
}

.background3{
    height: 120vh;
    background: url("crewdragon.jpg") no-repeat bottom center;
    background-size: cover;
}
*{
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
}

nav{
    display: flex;
    justify-content: space-around;
    align-items: center;
    min-height: 8vh;
    background-color: black;
    font-family: 'Poppins', sans-serif;
}

.logo{
    color: rgb(226, 226, 226);
    text-transform: uppercase;
    letter-spacing: 5px;
    font-size: 20px;
}

.nav-links{
    display: flex;
    justify-content: space-around;
    width: 40%;
}
.nav-links li{
    list-style: none;
}
.nav-links a{
    color: rgb(226, 226, 226);
    text-decoration: none;
    letter-spacing: 3px;
    font-weight: bold;
    font-size: 14px;
}

.burger{
    display: none;
    cursor: pointer;
}

.burger div{
    width: 25px;
    height: 3px;
    background-color: rgb(226, 226, 226);
    margin: 5px;
}

@media screen and (max-width:1024px){
    .nav-links{
        width: 60%;
    }
}

@media screen and (max-width:768){
    body{
        overflow: hidden;
    }
    .nav-links{
        position: absolute;
        right: 0px;
        height: 92vh;
        top: 8vh;
        background-color: grey;
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 50%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
    }
    .nav-links li{
        opacity: 0;
    }
    .burger{
    display: block;
    }

}

.nav-active{
    transform: translateX(0%);
}

.wrapper {
    margin: 0 auto;
    width: 1000px;
}

.clsFirstImg{
    width: 50%;
    top: 0px;
    left: 0px;
    margin: 1%;
}

.clsSecondImg{
    width: 50%;
    float: left;
}

.clsThirdImg{
    width: 50%;
    position: relative;
    top: 0px;
    left: 0px;
    margin: 1%;
}

.clsFourthImg{
    width: 50%;
    position: relative;
    top: 0px;
    left: 0px;
    margin: 1%;
}
.text{
    text-align: center;
    font-family: 'Poppins', sans-serif;
    font-weight: bold;
    font-size: 125%;
    position: relative;
    top: 50px;
    color: white;
}

.text1{
    font-family: 'poppins', sans-serif;
    font-size: 20px;
    margin: 4%;
}


.head1{
    text-align: center;
    font-family: 'Poppins', sans-serif;
    font-weight: bold;
    font-size: 75px;
    position: relative;
    top: 50px;
    color: white;

}