* {
    box-sizing: border-box;
}

/* Style the list */
.price {
    list-style-type: none;
    border: 1px solid #aaa;
    padding: 0;
    -webkit-transition: 0.3s;
    transition: 0.3s;
    margin: 0 0 20px;
}

/* Add shadows on hover */
.price:hover {
    box-shadow: 0 8px 12px 0 rgba(0, 0, 0, 0.2)
}

.price button {
    width: 100%;
}

/* Pricing header */
.price .header {
    background-color: #111;
    color: white;
    font-size: 25px;
}

/* List items */
.price li {
    border-bottom: 1px solid #eee;
    padding: 20px;
    text-align: center;
    font-size: 16px;
}

/* Grey list item */
.price .grey {
    background-color: #eee;
    font-size: 20px;
}

/* The "Sign Up" button */
.button {
    background-color: #4CAF50;
    border: none;
    color: white;
    padding: 10px 25px;
    text-align: center;
    text-decoration: none;
    font-size: 18px;
}
