* {
  box-sizing: border-box;
  }
body {
  background-color: lightgray;
  font-family: Arial;
  padding: 10px;
  }
.centrar {
  text-align: center;
  }
td,th{
  padding: 2px;
  text-align: left;
  border: 0px solid;
  border-color: #444444;
  }
li{
  padding: 5px;
  }
table {
  width: 75%;
  padding: 2px;
  <!-- border-collapse: collapse; -->
  <!-- border-spacing: 15px; -->
  <!-- border-color: coral; -->
  }
.grid-container {
  display: grid;
  grid-template-columns: 33%;
  margin: 3px;
  justify-content: center; /* centra horizontalmente */
}
.card {
  padding: 10px;
  margin-top: 1px;
 }