<style>
    .mb.card-body{
    text-align: center;
}
.mb.btn{
    border-radius: 0;
    box-shadow: 0.5px 1px 2px hsla(0, 0%, 20%, 1);
}
.mb.btn:hover{
    transform: translateY(-2px);
    box-shadow: 2px 2px 5px hsla(0, 0%, 20%, 1);
}
.mb.card{
    border-radius: 0px / 0px;
    overflow: hidden;
    box-shadow: 0.5px 1px 2px hsla(0, 0%, 20%, 1);
}
body, html {
  height: 100%;
}

.bg {
  /* The image used */
  background-image: url("../img/background.png");

  /* Full height */
  height: 100%;

  /* Center and scale the image nicely */
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
</style>