.login-form p {
    margin: 1em 0;
    text-align: center;
}
.login-form button {
    width: 6rem;
}

.reply-form {
    display: flex;
}
.reply-sticky {
    position: sticky;
    bottom: 0;
}

.reply-form textarea {
    resize: vertical;
    flex: 1;
    min-height: 2em;
    height: 4em;
}
.reply-form button {
    flex: 0 0 3em;
    margin-right: 0;
}

.post-form-bar {
    line-height: 2em;
    display: flex;
    margin-bottom: .5em;
}
.post-form-bar label {
    flex: 1;
}
.post-form-bar input[type=file] {
    border: 0;
    padding: 0 .5em;
}
@media screen and (max-width: 580px) {
    .post-form-bar input[type=file] {
        width: 110px;
    }
}
.post-form-bar button {
    flex: 0 0 8em;
    margin-right: 0;
}
.post-form-img-tip {
    font-size: small;
    margin-top: -.5em;
    margin-bottom: .5em;
}
.post-form textarea {
    resize: vertical;
    width: 100%;
    min-height: 5em;
    height: 20em;
}