docs/source/_static/scss/includes/_layout.scss

%content-padding {
    @include breakpoint-min(breakpoints(xl)) {
        padding: 0 $content-padding;
    }

    @include breakpoint-max(breakpoints(xl)) {
        padding: 0 $content-padding-sm;
    }
}

.content {
    
    //height: 100%;
    overflow: auto;
    @extend %content-padding;
    display: flex;
    flex-wrap: nowrap;
    height: calc(100vh - #{$header-height});
    
}

.content__main {
    flex: 1;
    min-width: 0;
    background-color: $content-bg;
    align-self: flex-start;

    @include breakpoint-min(breakpoints(xl)) {
        padding: $content-padding;
    }

    @include breakpoint-max(breakpoints(xl)) {
        padding: $content-padding-sm;
    }
}

.content__right {
    flex-shrink: 0;
    position: sticky;
    top: 0;
    max-width: 200px;
}