.nav-container { width: 240px; height: 100%; display: flex; flex-direction: column; border-right: 1px solid var(--mat-sys-outline-variant, rgba(0,0,0,0.12)); background-color: rgba(153,153,153,0.16); backdrop-filter: blur(8px); position: fixed; z-index: 100; &.collapsed { width: 64px; .label { display: none; } } } .nav-header { display: flex; justify-content: flex-end; // border-bottom: 1px solid var(--mat-sys-outline-variant, rgba(0,0,0,0.12)); padding-bottom: 1px; } a.mat-mdc-list-item { height: 44px; border-radius: 8px; margin: 4px 4px; color: cyan; &.active { background: color-mix(in oklab, var(--mat-sys-primary, #3f51b5) 16%, transparent); } } .nav-list{ //background-color: #f5f7fb; /* your color */ background-color: rgba(153,153,153,0.16); backdrop-filter: blur(8px); } .nav-list .mdc-list-item { background-color: rgba(153,153,153,0.16); backdrop-filter: blur(8px); } .nav-list .mdc-list-item:hover, .nav-list .mdc-list-item:focus { background-color: rgba(153,153,153,0.16); backdrop-filter: blur(8px); } .nav-list .mdc-list-item--selected { background-color: rgba(153, 153, 153, 0.50); backdrop-filter: blur(8px); } /* Primary and secondary text */ .nav-list .mdc-list-item__primary-text, .nav-list .mdc-list-item__secondary-text { color: cyan; } /* Optional: icons inside list items */ .nav-list .mat-icon { color: cyan; }