Fluent Design card lift effect

问题

I want to add the card lift effect to my bootstrap cards with fluent design styles on hover. You can see what I mean on microsoft design website.

Here's what I tried, but there is something missing and I cannot quite grab it.

I tried:

.card {
  box-shadow: -3px 6px 5px 0px rgba(176,164,176,1);
  transition: all .3s ease-in-out;
}

.card:hover {
  box-shadow: -3px 18px 20px 0px rgba(99,89,99,1);
}

<div class="card" style="width:19.5rem">
  <div class="card-body">
   Lorem ipsum dolor sit ameta, card content
  </div>
</div>

Kindly thanks for your help.

回答1:

What makes the effect to looks like it is lifting is the transform: translate3d, see translate3d w3cschools docs.

When the box-shadow changes on :hover the element itself moves in a different position, delivering the effect.

So by giving transform: translate3d(0px, -1px, 0px); ( translate3d(x,y,z) ), the element moves 1px up and shadow casts down.

.card {
  padding: 15px; /* JUST TO LOOK COOL */
  border: 1px solid #eee;  /* JUST TO LOOK COOL */
  box-shadow: rgba(0, 0, 0, 0.06) 0px 2px 4px;
  transition: all .3s ease-in-out;
}

.card:hover {
  box-shadow: rgba(0, 0, 0, 0.22) 0px 19px 43px;
  transform: translate3d(0px, -1px, 0px);
}

<div class="card" style="width:19.5rem">
  <div class="card-body">
   Lorem ipsum dolor sit ameta, card content
  </div>
</div>

回答2:

To achieve this effect, microsoft uses multiple box-shadows like so:

box-shadow: rgba(0, 0, 0, 0.06) 0px 2px 4px, rgba(0, 0, 0, 0.05) 0px 0.5px 1px;

on hover:

box-shadow: rgba(0, 0, 0, 0.22) 0px 19px 43px, rgba(0, 0, 0, 0.18) 0px 4px 11px;

.card {
  box-shadow: rgba(0, 0, 0, 0.06) 0px 2px 4px, rgba(0, 0, 0, 0.05) 0px 0.5px 1px;
  transition: all .3s ease-in-out;
}

.card:hover {
  box-shadow: rgba(0, 0, 0, 0.22) 0px 19px 43px, rgba(0, 0, 0, 0.18) 0px 4px 11px;
}

<div class="card" style="width:19.5rem">
  <div class="card-body">
   Lorem ipsum dolor sit ameta, card content
  </div>
</div>

回答3:

You are missing the actual movement upward. Many ways to achieve this, for example:

.card:hover {
  margin-top: -1px;
}

from the top of my head.

来源：https://stackoverflow.com/questions/51184792/fluent-design-card-lift-effect

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