.maindivcont{
    box-sizing: border-box;
    padding: 15px;
}
.descofnewsletter{
    font-size: 30px;
    font-weight: 300;
    font-family: Roboto;
}
.changesubscription{
    border: 2px #000 solid;
    background-color: transparent;
    color: #000;
    font-family: Roboto;
    padding: 8px;
    padding-left: 18px;
    padding-right: 18px;
    width: fit-content;
    font-size: 20px;
    font-weight: 300;
    margin-top: 10px;
    transition: all 300ms;
}

.changesubscription:hover{
    background-color: #000;
    color: #fff;
}