DIV exiting the screen

Question

I’ve seen several times a div kind of coming off the screen, and as I won’t be able to explain it properly, I’ll show you a picture of an example:

I figured it would be box-shadow, but I couldn’t do it. I don’t want to do the same design of the boy, until I will not "steal" his work, but I wanted to know how it does to look like this, leaving the screen.

Link: https://dribbble.com/shots/4150795-Conceptual-Dashboard-UI-Analytics

Answer 1

This effect uses box-shadow yes, but also uses transform:scale(1.2);

See this Snipper for an example:

* {
  box-sizing: border-box;
}
html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}
body {
  background-color: #3b414d;
  overflow: hidden;
}
.container {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.container div {
  display: inline-block;
  width: 100px;
  height: 100px;
  background-color: blueviolet;
  margin: 0;
  padding: 0;
}
.container div:nth-child(2) {
background-color: pink;
transform: scale(1.2);
box-shadow: 0 0 20px rgba(0,0,0,.5)
}

<div class="container">
  <div></div>
  <div></div>
  <div></div>
</div>

If you only want the effect when you do the :hover just replace the .container div:nth-child(2){} for .container div:hover{}

* {
  box-sizing: border-box;
}
html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}
body {
  background-color: #3b414d;
  overflow: hidden;
}
.container {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.container div {
  display: inline-block;
  width: 100px;
  height: 100px;
  background-color: blueviolet;
  margin: 0;
  padding: 0;
  transition: all .25s ease-in-out;
  position: relative;
  z-index: 0;
}
.container div:hover {
  background-color: pink;
  transform: scale(1.2);
  box-shadow: 0 0 20px rgba(0,0,0,.5);
  position: relative;
  z-index: 2;
  cursor: pointer;
}

<div class="container">
  <div></div>
  <div></div>
  <div></div>
</div>