.container {
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-webkit-box-align: center;
-ms-flex-align: center;
align-items: center;
-webkit-box-pack: center;
-ms-flex-pack: center;
justify-content: center;
min-height: 100vh;
background-color: #ededed;
}
.show {
position: relative;
background-color: white;
-webkit-box-shadow: 0 2px 6px 2px rgba(0, 0, 0, 0.1);
box-shadow: 0 2px 6px 2px rgba(0, 0, 0, 0.1);
width: 15rem;
height: 20rem;
margin: 0 1rem;
}
.show::after {
content: "";
position: absolute;
bottom: 0;
right: 0;
width: 0;
height: 0;
border-style: solid;
border-width: 0 0 48px 48px;
border-color: transparent transparent #4a90e2 transparent;
-webkit-transition: border-width 250ms;
transition: border-width 250ms;
}
.show::before {