styles.css

* {
  margin: 0;
  border: 0;
}

.main {
  height: 100vh;
  display: -ms-grid;
  display: grid;
  place-items: center;
}

.main .board {
  overflow: auto;
  padding: 15px;
  width: 500px;
  height: 300px;
  background-color: #D4ECDD;
  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;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
}

.main .board .node {
  -webkit-transition: 0.05s ease-out;
  transition: 0.05s ease-out;
  margin: 2.5px;
  background-color: #F7F6F2;
  width: 45px;
  height: 45px;
}

.main .board .node:hover {
  background-color: #EEEEEE;
}

.btn-container {
  position: relative;
  top: 7rem;
}

.btn {
  color: #eeeeee;
  background-color: #009DAE;
  padding: 0.8rem 2rem;
  margin: 40px;
}
/*# sourceMappingURL=styles.css.map */