* {
    box-sizing: border-box;
}

.columns
{
    margin: 0 10px 0 10px;
	max-width: 50ch;
}

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

li.header h2 {
	word-break: break-word;
}



li.feature {
    font-size: 1.1em;
    font-weight: 500;
}

/* Add shadows on hover */
.columns.highlight {
    box-shadow: 0 18px 28px 0 rgba(0,0,0,0.2)
}

.price:hover, .price.highlight {
    box-shadow: 0 8px 12px 0 rgba(0,0,0,0.2)
}

/* Pricing header */
.price .header {
    color: white;
    background-color: #7ba597;
    display: grid;
    align-items: center;
}

.price .header.highlight {
    box-shadow: 0 8px 12px 0 rgba(0,0,0,0.2);
    background-color: #4CAF50;
}

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

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

/* The "Sign Up" button */
.signup-button {
    background-color: #7ba597;    
    border: none;
    color: white !important;
    padding: 10px 25px;
    text-align: center;
    text-decoration: none;
    font-size: 18px;
}

ul.highlight .signup-button {
    background-color: #4CAF50;
}

    /* Change the width of the three columns to 100%
            (to stack horizontally on small screens) */
    @media only screen and (max-width: 600px) {
        .columns {
            width: 100%;
        }

        section.ri .columns:nth-child(even) {
            margin-top: 30px;
            margin-bottom: 30px;
        }
    }