In Angular/CSS, setting the height of all parent elements to 100% does not necessarily ensure that the child element

I have a page where I've set all parent elements to a height of 100%, including the root of the app. However, when I reach a component in the body, it seems to be ignoring the height settings. Even though my dev tools show that the direct parent of ".main-container-employee" has a height of 100%, the component is still not displaying correctly. I've tried setting the styles of ".main-container-employee" inline to avoid any issues with the shadow DOM, but it's not working. Any assistance would be greatly appreciated!

https://i.sstatic.net/zatH1.png

In my styles.scss file, I have the following code:

:root,
html,
body {
  height: 100%;
  min-height: 100%;
}

.main-container-employee {
  min-height: 100%;
  height: 100%;
  display: block;
}

In the App.component html, I have the following code:

<div class="main-container-employee" style="height: 100%; min-height: 100%; display: block;">

  <div class="header-box">
      <abf-logo-bar></abf-logo-bar>
      <abf-navbar [routeList]="navbarRoutes"></abf-navbar>
  </div>
  
  <div class="content-container">
    test
  </div>
  
</div>

Answer №1

Your understanding of HTML may need some adjustment. The main-container-employee div having a height of 100% seems logical at first glance. However, the issue arises when you have two other divs nested inside.

The header-box div adjusts its height based on the content within it, affecting its overall height calculation.

Similarly, the content-container div you mentioned seems to have the same problem. It adapts its height based on the content inside, failing to expand to the full height.

To resolve this issue and make the content-container div expand to full height, you must explicitly set its height to 100%.

I've put together a demo with code similar to yours. Feel free to take a look: Check it out.

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