body{
    margin: 0;
    background-color: aqua;
    height: 100vh;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.container{
    width: 40%;
    height:70%;
}

.cloud{
    width: 50%;
    position: relative;
    left:100px;
    top: 200px;
    animation: cloud 5s linear infinite alternate;
}

@keyframes cloud{
    0%{left: 100px;}
    50%{left:300px;}
    100%{left:400px;}
}

.cloud2{
    width: 50%;
    position: relative;
    left:500px;
    top: 200px;
    animation: cloud2 4s linear infinite alternate;
}

@keyframes cloud2{
    0%{left:500px;}
    50%{left:700px;}
    100%{left:900px;}
}

.cloud-bottom{
    position: absolute;
    width: 190px;
    height: 50px;
    border:1px solid transparent;
    border-radius: 50px;
    background-color: aliceblue;
}

.cloud-middle{
    position: absolute;
    left:40px ;
    top: -20px;
    width: 140px;
    height: 40px;
    border:1px solid transparent;
    border-radius: 30px;
    background-color: aliceblue;
}

.cloud-middle-2{
    position: absolute;
    left:25px ;
    top: -15px;
    width: 150px;
    height: 40px;
    border:1px solid transparent;
    border-radius: 30px;
    background-color: aliceblue;
}

.cloud-top-1{
    position: absolute;
    left:110px ;
    top: -40px;
    width: 50px;
    height: 40px;
    border:1px solid transparent;
    border-radius: 50%;
    background-color: aliceblue;
}

.cloud-top-2{
    position: absolute;
    left:60px ;
    top: -40px;
    width: 60px;
    height: 40px;
    border:1px solid transparent;
    border-radius: 50%;
    background-color: aliceblue;
}
.cloud-top-most{
    position: absolute;
    left:90px ;
    top: -50px;
    width: 40px;
    height: 40px;
    border:1px solid transparent;
    border-radius: 50%;
    background-color: aliceblue;
}

.heli{
    position: relative;
    top: 100px;
    left: 400px;
    animation: landing 7s linear infinite backwards;
    animation-delay: 1s;
    
}

@keyframes landing{
    0%{left:100px; top:0; transform: rotate(0);}
    30%{left:500px; top:444px; }
    40%{left:500px; top:444px; transform: rotate(-3deg);}
    60%{left:500px; top:444px; transform: rotate(0);}
    70%{left:900px; top:100px;transform: rotate(5deg);}
    100%{left:900px; top:100px; transform: rotate(5deg);}
}


.heli-fuselage{
    position: absolute;
    width: 300px;
    height: 40px;
    border:1px solid transparent;
    border-radius: 50px;
    background-color: rgb(131, 118, 6);
}

.heli-cabin{
    position: absolute;
    left: 160px;
    top: -50px;
    width: 100px;
    height: 60px;
    border:1px solid transparent;
    border-radius: 100px 150px 60px 60px;
    background-color: rgb(131, 118, 6);
    z-index: -1;
}

.heli-window{
    position: absolute;
    left: 215px;
    top: -30px;
    width: 30px;
    height: 30px;
    border:1px solid transparent;
    background-color: aqua;

}

.heli-front{
    position: absolute;
    left: 210px;
    top: -20px;
    width: 60px;
    height: 40px;
    border:1px solid transparent;
    border-radius: 20px;
    background-color: rgb(131, 118, 6);
    z-index: -1;
}
.heli-main-shaft{
    position: absolute;
    left: 200px;
    top: -65px;
    width: 0px;
    height: 30px;
    border:2px solid transparent;
    background-color: green;
    
}
.heli-main-rotor{
    position: absolute;
    left: 90px;
    top: -65px;
    width: 200px;
    height: 0px;
    border:2px solid transparent;
    background-color: black;
    transform: rotate(5deg);
    animation: main 0.3s linear infinite forwards ;
}
@keyframes main{
    0%{transform: rotateX(0)  rotate(5deg)}
    100%{transform: rotateY(180deg)  rotate(-5deg)}
}

.heli-tail-rotor-hub{
    position: absolute;
    left: 20px;
    top: 12px;
    border:7px solid transparent;
    border-radius: 100%;
    background-color: rgb(17, 58, 17); 
}

.heli-tail-rotor{
    position: absolute;
    left: 23px;
    top: -30px;
    width: 0px;
    height: 100px;
    border:2px solid transparent;
    background-color: black;
    transform: rotate(35deg);
    animation: tail 0.6s linear infinite forwards ;
}

@keyframes tail{
    0%{transform: rotate(5deg)}
    100%{transform:  rotate(180deg)}
}


.heli-skid-holder-1{
    position: absolute;
    left: 180px;
    top: 30px;
    width: 0px;
    height: 20px;
    border:1px solid transparent;
    background-color: green;
    z-index: -1;
}

.heli-skid-holder-2{
    position: absolute;
    left: 250px;
    top: 30px;
    width: 0px;
    height: 20px;
    border:1px solid transparent;
    background-color: green;
    z-index: -1;
}

.heli-skid{
    position: absolute;
    left: 130px;
    top: 50px;
    width: 160px;
    height: 0px;
    border:2px solid transparent;
    border-radius: 0 0 10px 10px;
    background-color: black;
}

.helipad{
    width: 400px;
    height: 30px;
    background-color: rgb(141, 139, 139);
    color: rgb(36, 30, 30);
    position: relative;
    left: 500px;
    top: 515px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    
}