* {
  font-family: cursive;
  text-align: center;
  margin: 0;
  padding: 0;
}

h1 {
  margin-top: 30px;
  margin-bottom: 30px;
  text-decoration: line-through;
}
h3 {
  margin-top: 20px;
  margin-bottom: 20px;
  color: rgb(3, 13, 107);
}

.input-submit {
  border-radius: 5px;
  width: 70px;
  height: 30px;
  font-size: medium;
  font-family: cursive;
  cursor: pointer;
}

.color-picker {
  margin-bottom: 20px;
  cursor: pointer;
}

table,
tr,
td {
  border: rgb(0, 0, 0) 1px solid;
}

.grid-canvas {
  background-color: white;
  cursor: pointer;
}

/* 'border-collapse' CSS property specifies whether a table's cells have shared or separate borders; 'collapse' value causes cells to have shared borders */
table {
  border-collapse: collapse;
  margin: auto;
}

tr {
  height: 20px;
}

td {
  min-width: 20px;
  box-sizing: border-box;
}