hide-clutter.css

body {
    --background-modifier-border-hover: transparent !important;
    --modal-border-color              : transparent !important;
    --prompt-border-color             : transparent !important;
    --background-modifier-border-focus: transparent !important;
    --background-modifier-boder       : transparent !important;
    --input-shadow                    : none !important;
    --blockquote-border-color         : none;
    --divider-color                   : transparent;
}

.cm-blockid,
.titlebar-text {
    opacity: 0;
}

.cm-active .cm-blockid,
.cm-blockid:hover {
    opacity: 1;
}

.workspace-ribbon.mod-left,
.sidebar-toggle-button.mod-right,
.status-bar,
.cm-s-obsidian .external-link,
.frontmatter-container {
    display: none;
}

.workspace-tab-header:not(:hover) .workspace-tab-header-inner-close-button,
.workspace-tab-header-container:not(:hover) .clickable-icon {
    visibility: hidden;
}

.cm-s-obsidian .external-link,
a.external-link {
    background-image: none !important;
    padding-right   : 0px !important;
}