.divTxtAreaW20 {
    width: 20%;
    background-color: cornflowerblue;
}

.divTxtAreaW3 {
    width:3%;
    
}

.divTxtAreaW77H450 {
    width: 77%;
    height: 450px;
}

.divTxtAreaW77H900 {
    width: 77%;
    height: 900px;
}


.min-height400 {
    min-height: 400px;
}