@media screen and (max-width: 768px) {
    .formBlockNav {
        width: 410px;
    }
    .sendTextarea{
         width: 410px;
    }
}
@media screen and (max-width: 460px) {
    .formBlockNav {
        width: 410px;
         max-width: 410px;
    }
    .sendTextarea{
         width: 410px;
         max-width: 410px;
    }
    .inputSend {
        width: 175px;
    }
}