.o_thread_window {
    &.o_thread_less {
        .o_thread_search_input {
            display: flex;
            align-items: baseline;
            padding: $o-mail-chatter-gap*0.5 $o-mail-chatter-gap;

            > span {
                flex: 0 0 auto;
            }

            > input {
                margin-left: 5px;
                padding: $o-mail-chatter-gap*0.5;
                flex: 1 1 100%;
            }
        }

        .o_mail_thread {
            background-color: $o-webclient-background-color;
        }

        .o_thread_composer {
            display: none;
        }
    }

    .o_thread_composer {
        .o_file_drop_zone_container {
            top: 35px;
        }
        .o_composer {
            .o_composer_input {
                width: 80%;
                > textarea {
                    padding: 10px;
                    font-size: 13px;
                }
                @include media-breakpoint-down(sm) {
                    width: 70%;
                    > textarea {
                        padding: 15px 10px;
                    }
                }
            }
            .o_chatter_composer_tools {
                @include o-position-absolute($right: 0px, $top: 0px);
                button {
                    padding: 10px;
                    @include media-breakpoint-down(sm) {
                        padding: 13px;
                    }
                    &.btn.fa {
                        font-size: 1.3em;
                    }
                }
            }
        }
        .o_composer_attachments_list {
            margin: 0px;
        }
    }
}