body{
    background-color:rgb(250,250,250);
}
.button {
    background-color: rgb(131, 131, 131); 
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 2px;
    width: 250px;
    -webkit-border-radius:5px;
    -webkit-appearance: none;
}
.button_clicked {
    background-color: rgb(157, 228, 98);
}
.button:hover{
    background-color: rgb(157, 228, 98);
}

.button_important {
    background-color: rgb(255, 0, 0); 
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    font-size: 16px;
    margin: 2px;
    width: 250px;
    -webkit-border-radius:5px;
    -webkit-appearance: none;
}
.button_important_clicked {
    background-color: rgb(157, 228, 98);
}
.button_important:hover{
    background-color: rgb(157, 228, 98);
}

table, th, td {
    border: 1px solid black;
    border-collapse: collapse;
  }
th, td {
    padding: 5px;
  }
th {
    text-align: left;
  }