*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    transition: 3s;
}
@media screen and (min-width: 900px){

body{
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    

}

.main{
    width: 45vw;
    height: 45vw;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: -2;
}
.round{
    position: absolute;
    width: 80%;
    height: 50%;
    
    border-radius: 50%;
    filter: blur(50px);
    z-index: -1;
}
.B{
   width: 100%;
   height: 100%;
   display: flex;
   flex-direction: column;
   justify-content: space-between;

}

.s, .s2{
    width: 100%;
    height: 49%;
    border-radius: 20%;
    filter: blur(1px);
    
}
}
@media screen and (max-width: 899px){
    body{
        width: 100%;
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        
    
    }
    
    .main{
        width: 60vw;
        height: 60vw;
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
        z-index: -2;
    }
    .round{
        position: absolute;
        width: 80%;
        height: 50%;
        
        border-radius: 50%;
        filter: blur(20px);
        z-index: -1;
    }
    .B{
       width: 100%;
       height: 100%;
       display: flex;
       flex-direction: column;
       justify-content: space-between;
    
    }
    
    .s, .s2{
        width: 100%;
        height: 49%;
        border-radius: 20%;
        filter: blur(1px);
        
    }
}
@media screen and (max-width: 500px){
    body{
        width: 100%;
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        
    
    }
    
    .main{
        width: 70vw;
        height: 70vw;
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
        z-index: -2;
    }
    .round{
        position: absolute;
        width: 80%;
        height: 50%;
        
        border-radius: 50%;
        filter: blur(20px);
        z-index: -1;
    }
    .B{
       width: 100%;
       height: 100%;
       display: flex;
       flex-direction: column;
       justify-content: space-between;
    
    }
    
    .s, .s2{
        width: 100%;
        height: 49%;
        border-radius: 20%;
        filter: blur(1px);
        
    }
}