#Ho {
    border: 2px solid black;
    margin-left: 50px;
    margin-right: 50px;
    width: 100px;
    height: 20px;
}

#Hov {
    border: 2px solid black;
    margin-left: 50px;
    margin-right: 50px;
    width: 100px;
    height: 20px;
    display: none;
}


#Ho:hover + #Hov {
    display: block;
}

#Hove:hover {
    width: 100px;
    height: 20px;
    border: 2px solid black;
    background-color: #B8CDF8;
}