@import url('https://fonts.googleapis.com/css?family=Poppins');

* {
  margin:0;
  padding: 0;
  text-decoration: none;
  list-style-type: none;
  color: #333;
  font-size: 1em;
  font-family: 'Poppins', Arial, Helvetica, sans-serif;
  box-sizing: border-box;
}
body {
  width: 100%;
  height: 100vh;
  background: #ddd;
  display: flex;
  justify-content: center;
  align-items: center;
}
.modal a {
  display: inline-block;
  min-width: 100px;
  border: 1px solid #888;
  border-radius: 5px;
  background: #fff;
  text-align: center;
  padding: 30px;
  margin: 10px;
  transition:
    box-shadow 0.3s,
    color 0.5s,
    border-color 0.5s
    ease;
  font-size: 1.5em;
}
.modal a:hover {
  box-shadow: 5px 0 15px #ccc, -5px 0 15px #ccc, 0 5px 15px #ccc, 0 -5px 15px #ccc;
  color: #3890D4;
  border-color: #3890D4;
}