.manage__blacklist {
    display: flex;
    justify-content: space-evenly;
}
.manage__blacklist__form {
    margin: 2px;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}
.manage__blacklist__select,
.manage__blacklist__textarea {
    margin: 0;
    padding: 5px 10px;
    font-family: monospace;
    width: 100%;
    min-width: 100%;
    max-width: 100%;
    min-height: 400px;
}
.manage__blacklist__button { margin-top: 1px; }

@media (max-width: 800px) {
    .manage__blacklist {
        flex-direction: column;
    }
}