.btn-earthwave {
    background-color: #0eb290;
    border-color: #0eb290
    
}

.btn-earthwave:hover, 
.btn-earthwave:active,
.btn-earthwave:focus,
.btn-earthwave:visited {
    background-color: #00967d;
    border-color: #00967d
}

table, th, td {
    border: 1px solid black;
    border-collapse: collapse;
    padding-left: 10px;
    padding-right: 10px;
    padding-top: 2px;
    padding-bottom: 2px;
    text-align: center;
  }

body {
    margin: 10px;
    padding: 10px;
}