Beep(temporary and not to use) by him

/* ==UserStyle==
@name           ? - Jul 2024
@namespace      github.com/openstyles/stylus
@version        1.0.0
@description    A new userstyle
@author         Me
==/UserStyle== */

@-moz-document domain("example.com") {
     /* Insert code here... */
	div[class="_1A4wBfXGCJbuqLBs0CbYmf _3g8dJCEgNKLwbhx9rXgLuZ _3yDlEazbDV1ZHg1bVsUha1"]{
    background-color: black;
    display: none;
}
.mx_MatrixChat_wrapper--windows .bp_LeftPanel, .mx_MatrixChat_wrapper--linux .bp_LeftPanel {
    background-color: #111;
}
.bp_LeftPanel{
    margin: 10px;
    margin-inline: 0px;
}
#matrixchat, div[class="bp_MainPanel"], div[class="mx_RoomHeader light-panel"]{
    background-color: black;
}
div[class="bp_TitleBar"]{
    background-color: #111;
    margin: 5px;
    margin-inline: 10px;
 
    margin-inline: 5px;
}
div[class="mx_ResizeHandle mx_ResizeHandle_horizontal"]{
    opacity: 0;
}

div[class="mx_RoomHeader_wrapper"]{
    background-color: #111;
    margin-top: 10px;
   
    margin-bottom: 10px;
}
div[class="_1ihPYCzuJqqMmX1Qh65xUK"]{
    background-color: #111;
    
}
div[class="bp_MainPanel"]{
    margin-right: 10px;
}
div[class="_1ihPYCzuJqqMmX1Qh65xUK"]{
    background-color: #111
}
div[class="_1fJQLY3NzmLrdWaOTqOBgG noselect ea-lEmwPo2rOFtqvuwS4v"], div[class="bp_col MpkyObDAJJhMLDOkejyOJ _84UaxAfhJKSG3A9Swkn83"]{
    background-color: #111;
}
.mx_MatrixChat > :not(.mx_SpacePanel):not(.bp_MainPanel):not(.mx_LeftPanel_wrapper):not(.bp_LeftPanel) {
    background: #111;
    margin-top: 10px;
    margin-bottom: 10px;
    height: 98%;
    margin-left: 10px;
}
._16Ny3EaDbjMxMnRqLiU34p .F2GSeFBo-3YqqCWhD-HuZ .y08LVn85Pts50oNpTtl-_ {
    margin-inline: -10px;
    background: #000;
    margin-bottom: -5px;
}
}