问题 I am working on mat-stepper with usage of flex-layout. Every step contains and icon and a paragraph to make it responsible and more readable I want to hide paragraph on smaller screens and leave only icon. Per my understanding fxHide.lt-sm should hide element if the resolution is lower than small but unfortunately nothing happens and it looks like this: Image of stepper (Galaxy S5 size) Here is the code: <mat-horizontal-stepper> <mat-step> <ng-template matStepLabel> <ul> <li> <mat-icon>format