riot-web/res/css/structures/_AutoHideScrollbar.pcss

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/*
Copyright 2018-2024 New Vector Ltd.
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/
/* make any scrollbar grey and thin */
html {
scrollbar-color: $scrollbar-thumb-color transparent;
}
/* scrollbar-width is not inherited (but -color is, why?!), */
/* so declare it on every element */
* {
scrollbar-width: thin;
}
::-webkit-scrollbar {
width: 6px;
height: 6px;
}
::-webkit-scrollbar-thumb {
border-radius: 3px;
background-color: $scrollbar-thumb-color;
}
/* make auto-hide scrollbars not transparent again on hover */
.mx_AutoHideScrollbar:hover {
scrollbar-color: $scrollbar-thumb-color transparent;
&::-webkit-scrollbar-thumb {
background-color: $scrollbar-thumb-color;
}
}
/* make scrollbars transparent for autohide scrollbars */
.mx_AutoHideScrollbar {
overflow-x: hidden;
overflow-y: auto;
overflow-y: overlay; /* where supported */
-ms-overflow-style: -ms-autohiding-scrollbar;
&::-webkit-scrollbar {
background-color: transparent;
}
&::-webkit-scrollbar-thumb {
background-color: transparent;
}
scrollbar-color: transparent transparent;
}