.container{
    display: flex;
    flex-wrap: nowrap;
    flex-direction: column;

}
.gree{
    height: 150px;
    width: 100%;
    background-color: greenyellow;
}
.cont2{
    display: flex;
    flex-wrap: nowrap;
    flex-direction: row;
    height: 300px;
    
}
.wei{
    width: 80%;
    background-color: aliceblue;
}
.wei2{
    width: 20%;
    background-color: bisque;
}
.wei3{
    width: 20%;
    background-color: lightblue;
}