Vue transition-group - how to prevent "jumping"? - vue.js

Question

I have two divs that i transition between using transition-group, which works as it should - however, the content below the divs transitioning, is "jumping" depending on the height of the divs.
What I want it that jumping being prevented, and instead it animates somehow, so I get a nice smooth transition when switching between elements without it "pushing" down to content with a "jump"..
Hope it makes sense :)
I've setup an example on codesandbox here: https://codesandbox.io/s/reverent-stallman-8ixhp?file=/src/components/HelloWorld.vue
The template looks like:
<div class="hello">
<button #click="groupShowOne">Show first {{ gShowFirst }}</button>
<button #click="groupShowTwo">Show second {{ gShowSecond }}</button>
<transition-group name="fade-group" tag="div" mode="out-in" appear>
<div
class="group-element"
v-if="gShowFirst"
style="background-color: yellow"
>
<h3>This is a headline</h3>
<p>This is a text</p>
</div>
<div
class="group-element"
v-if="gShowSecond"
style="background-color: red"
>
<h3>
This is a headline <br />This is a headline <br />This is a headline
This is a headline This is a headline This is a headline
</h3>
<p>
This is a text This is a text This is a text This is a text This is a
text v This is a text v <br />This is a text This is a text This is a
text This is a text This is a text v This is a text v <br />This is a
text This is a text This is a text This is a text This is a text v
This is a text v
</p>
</div>
</transition-group>
<div style="background-color: blue; min-height: 500px; color: #FFF">
Prevent this div from jumping<br />
</div>
</div>
The animation looks:
<style scoped>
.group-element {
width: 100%;
min-height: 100px;
max-height: 20000px;
transition: all 0.5s;
}
.fade-group-enter,
.fade-group-leave-to {
opacity: 1;
}
.fade-group-leave-active {
opacity: 0;
position: absolute;
}
</style>

Answer 1

Try this
Setting the transition property in the passive div:
.ele {
background-color: blue;
min-height: 500px;
color: #fff;
-moz-transition: all 0.5s;
-ms-transition: all 0.5s;
-o-transition: all 0.5s;
-webkit-transition: all 0.5s;
transition: all 0.5s;
}
Let it do some animation
eleStyle() {
return {
transform: this.gShowSecond ? "translate3d(0, 100px, 0)" : "none",
};
},
The div:
<div class="ele" :style="eleStyle">Prevent this div from jumping<br /></div>

Answer 2

What you can try:
Vue has a *-move class for group transitions. However, the transition-group has to be applied to all the elements including the one that has the v-move class, to work.
Here's the article link if you need it for more details: https://vuejs.org/guide/built-ins/transition-group.html#move-transitions
(*-move basically animates items from their original position to their new position, making it smooth, rather than jumpy)
You could still work with what you have and dynamically bind a separate CSS transition for the blue box when showSecond or showFirst equate to a certain value.