* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
#particles-js {
  height: 100vh;
  width: 100%;
  
  display: flex;
  justify-content: center;
  align-items: center;
  background-repeat: no-repeat;
  background-size: cover;
  background-image: url("");
  background-position: 50% 50%;
  background-color: black;
}
main {
  position: absolute;
  display: grid;
  place-items: center;
  height: 80vh;
}


h1, h2, legend {
  color: beige;
  font-family: monospace;
  margin: 2rem 0;
}
h1, h2 {
  font-size: 3rem;
}

table {
  background-color: beige;
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
}

tbody {
  border: 2px solid gray;
  display: flex;
  flex-direction: column;
}
td {
  border: 1px solid thistle;
}

input {
  height: 3.2rem;
  width: 3.2rem;

  text-align: center;
  font-size: 2.5rem;
  color: #555;
  
}

table, th, td {
  border-collapse: collapse;
  z-index: 1;
}

#success {
  /* width: 100%; */
  background-color: #aae390bb;
  padding: 20px 10px;
  margin-top: 15px;
  border-radius: 12px;
  display: none;
  flex-direction: column;
}

#success h1 {
  font-size: 5rem;
}
#success h1,
#success h2 {
  color: #fff;
  text-align: center;
}

/* Chrome, Safari, Edge, Opera */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Firefox */
input[type=number] {
  -moz-appearance: textfield;
}