Ways to eliminate the excess margin of ng-container from the webpage

When controlling two mat tabs with a statement, I encountered an interesting issue. Both mat-tab elements contain a card-list and are controlled with a statement in ng-container. Strangely, on the first tab, the card has a slight margin from the top when I hover over it, showing 'ng-star-inserted'. The opposite logic applies to the second mat-tab card element, as it has a margin from the bottom. If I remove '' line, the unnecessary margin disappears, but the logic stops working. How can I eliminate this unnecessary margin without compromising the logic that determines if appointments have passed or not?

Margin on top (Active appointments tab)

https://i.sstatic.net/DHszE.jpg

<ng-container *ngIf="!appointment.passed">

Margin on bottom (Past appointments tab)

https://i.sstatic.net/17CK9.jpg

<ng-container *ngIf="appointment.passed">

Appointments array below (each object has a passed value indicating if it has passed or not)

0: {id: 36, appointmentDate: "2019-12-27T10:28:15", doctorName: "Conner Reyes", departmentName: "Urology", hospitalName: "Genopkins Hospital", …}
1: {id: 57, appointmentDate: "2020-01-03T08:29:25", doctorName: "Ayesha Brewer", departmentName: "Eye Center", hospitalName: "Genopkins Hospital", …}
2: {id: 40, appointmentDate: "2020-01-11T17:23:39", doctorName: "Shelbie Jenkins", departmentName: "Gynecologic Oncology", hospitalName: "Genopkins Hospital", …}
3: {id: 58, appointmentDate: "2020-01-15T15:45:19", doctorName: "Kirsty Armstrong", departmentName: "Eye Center", hospitalName: "Genopkins Hospital", …}
4: {id: 93, appointmentDate: "2020-01-16T17:26:27", doctorName: "Claire Burton", departmentName: "Eye Center", hospitalName: "Mediclinic Hospital", …}
javascriptcssangular

Answer №1

Hey there, please take note of the gap you are experiencing, it may be due to padding rather than margin.

Additionally, when using 

<ng-container></ng-container>
in Angular, it creates a comment rather than an element.

<ng-container *ngIf="true">
  <div>
    Hello
  </div>
</ng-container>

Upon rendering in the DOM, it will appear as:

<!--bindings={
  "ng-reflect-ng-if": "true"
}--><!---->
<div _ngcontent-jim-c0=""> Hello </div>

If mat-card is an external component, consider using ::ng-deep in your CSS component code.

For example:

::ng-deep {
    .mat-card.ng-star-inserted { padding: 0; }
}

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