rem vs em

Solutions on MaxInterview for rem vs em by the best coders in the world

showing results for - "rem vs em"
Daniele
31 Jul 2019
1em -> is relative to the font-size of its direct or nearest parent 
2rem -> is relative to the html (root) font-size
Monica
08 Jun 2019
1/* rem */
2Translation of rem units to pixel value is determined by the font size
3of the html element. This font size is influenced by inheritance from 
4the browser font size setting unless explicitly overridden with a unit 
5not subject to inheritance (px or vw). 
6
7/* em */
8Translation of em units to pixel values is determined by the font size 
9of the element they’re used on. This font size is influenced by 
10inheritance from parent elements unless explicitly overridden with 
11a unit not subject to inheritance. ---> change the menu’s font size the
12spacing (paddings etc) around the menu items will scale proportionately,
13independently of the rest of the layout. 
14
Louisa
29 May 2018
11EM or 1REM (r = root em)
2The difference is inheritance.
3The Rem value is based on the root element (html).
4What is meant here is the font size for html and not the font size for the documet body.
5... Em is based on the font size of each
6Parent element.
Frida
21 Jan 2021
1Explanation: If you run these code you understand differences between rem vs em
2In this example, font-size of first h1 is 48px (nearest parent) and font-size 
3of second h1 is 32px ( parent of page which is html)
4<style>
5  html {
6    font-size: 32px;
7  }
8  .font {
9    font-size: 48px;
10  }
11  .em {
12    font-size: 1em;
13  }
14  .rem {
15    font-size: 1rem;
16  }
17</style>
18<body>
19  <div class="font">
20    <h1 class="em">Hey guys!</h1>
21  </div>
22  <div class="font">
23    <h1 class="rem">Hey guys!</h1>
24  </div>
25</body>
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