* {
    margin: 0;
    padding: 0;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', 'Arial', 'sans-serif';
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
}

#main {
    width: 100%;
    min-height: 100vh;
}

.top {
    width: 100%;
    min-height: 60vh;
    background-image: url(https://images.unsplash.com/photo-1511207538754-e8555f2bc187?w=500&auto=format&fit=crop&q=60&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxzZWFyY2h8MTl8fGZvcmVzdHxlbnwwfHwwfHx8MA%3D%3D);
    background-size: cover;
    background-position: center;

}

.top .overlay {
    position: relative;
    width: 100%;
    min-width: inherit;
    background-color: rgba(0, 0, 0, 0.300);
}

.text {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: absolute;
    width: 100%;
    padding: 0 10vh;
    color: white;
    margin-top: 130px;
}

.text h1{
    font-weight:600;
    font-size: 4vw;
}
.text .image{
    background-image: url(https://images.unsplash.com/photo-1469474968028-56623f02e42e?w=500&auto=format&fit=crop&q=60&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxzZWFyY2h8MTF8fG5hdHVyZXxlbnwwfHwwfHx8MA%3D%3D);
    background-size: cover;
    background-position: center;
    height:280px;
    width:280px;
    opacity:0.5 ;
}
.rtext{
    display: flex;
    width: 25%;
    align-items: center;
    justify-content: space-between;
}
.rtext p{
    font-size: 12px;
}
.bottom{
    display: flex;
    width:100%;
    min-height: 40vh;
    background-color: rgb(1, 18, 2);
    padding: 5px 5px 10px 5px;
}
.b1{
    cursor: pointer;
    opacity:1;
    width:30%;
    min-height: inherit;
    background-image: url(https://images.unsplash.com/photo-1433086966358-54859d0ed716?w=500&auto=format&fit=crop&q=60&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxzZWFyY2h8M3x8bmF0dXJlfGVufDB8fDB8fHww);
    background-size: cover;
    background-position: center;
    margin: 5px;
}
.b1:hover{
    opacity:0.8;
}
.b1 h1{
    text-align: center;
    padding: 30px;
    text-shadow: 0px 0px 10px white;
}
.b1 p{
    color:white;
    text-align:center;
    padding:15px;
    text-align: justify;
}
.b2{
    width:30%;
    min-height: inherit;
    display: flex;
    flex-direction: column;
    margin: 5px;
}
.b2 .up{
    cursor: pointer;
    opacity:1;
    width:100%;
    min-height:40vh ;
    background-image:url(https://images.unsplash.com/photo-1504893524553-b855bce32c67?w=500&auto=format&fit=crop&q=60&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxzZWFyY2h8MTh8fG5hdHVyZXxlbnwwfHwwfHx8MA%3D%3D);
    background-size: cover;
    background-position: center;
    color: white;
    margin-bottom: 5px;
}
.b2 .up h1{
    color:rgb(9, 1, 1);
    text-shadow: 0px 0px 10px white;
    text-align: center;
    padding: 33px;
}
.b2 .up p{
    color:white;
    text-align:center;
    padding: 10%;
    text-align: justify;
}
.b2 .up:hover{

    opacity:0.8;
    }
.b2 .down{
    width:100%;
    min-height: 20vh;
    background-image: url(https://images.unsplash.com/photo-1470813740244-df37b8c1edcb?w=500&auto=format&fit=crop&q=60&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxzZWFyY2h8MTJ8fG5hdHVyZXxlbnwwfHwwfHx8MA%3D%3D);
    background-size: cover;
    background-position: center;
    cursor: pointer;
    transition: 0.4s;
    color:rgb(254, 240, 240);
    text-shadow: 10px 0px 10px white;    
}
.b2 .down .overlay{
    position: relative;
    width: 100%;
    min-height:20vh;  
}   
.b2 .down:hover{
    background-image: url(https://www.hitechnectar.com/wp-content/uploads/2018/07/notepad-jpg-webp.webp); 
    color:black;
    text-shadow: 0px 0px 10px black;
}
.b3{
    width:40%;
    min-height: inherit;
   background-image: url(https://plus.unsplash.com/premium_photo-1661693822441-f2501a0d3918?w=500&auto=format&fit=crop&q=60&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxzZWFyY2h8NXx8bWFnbmlmeWluZyUyMGdsYXNzfGVufDB8fDB8fHww); 
   background-size: cover;
   background-position: center;
   margin: 5px;
}
.b3 .overlay{
    justify-content: right;
    position: relative;
    margin-left: 5%;
    width: 30%;
    height: 160px;
    padding: 2px 3px;
    margin-top: 10px;
    background-color: rgba(255, 255, 255, 0.344);
}
.b3 .bg{
    background-color: rgba(255, 255, 255, 0.325);
    width:100%;
    height:100%;
    margin-top: -2px;
}
.b3 .overlay p{
    padding: 1.2vh;
}
@media(max-width:700px){
    .rtext{
        flex-direction: column;
    }
    .b3 .overlay{
        width:100%;
        margin-left:initial;
    }

}
@media(max-width:500px){
    .text{
        flex-direction: column;
        align-items: flex-start;
    }
    .text h1{
        font-size: 5vh;
    }
    .text .image{
        height:190px;
        width: 200px;
        margin: 8px 2px 15px 2px;
    }
    .rtext{
        flex-direction:row ;
        width:43%;
        align-items:flex-start;
        margin-bottom: 5px;
    }
    .icon{
        margin-top: 10px;
    }
    .bottom{
        flex-direction: column;
        align-items: flex-start;
    }
    .b1{
        width:100%;
    }
    .b2{
        width:100%;
    }
    .b3{
        width:100%;
    }
}