.mat-slider-horizontal {
    height: 48px;
    min-width: 200px !important;
}

.mat-slider-min-value.mat-slider-thumb-label-showing .mat-slider-thumb,
.mat-slider-min-value.mat-slider-thumb-label-showing .mat-slider-thumb-label {
    background-color: rgba(124, 124, 124, 0.87) !important;
}