@charset "utf-8";
/* button style */
.button {
    width: 18.9rem;
    height: 310px;
    font-size: 1.2em;
    font-weight: bold;
    text-decoration: none;
    display: block;
    text-align: center;
    padding: 0;
}

.button:active{
    opacity: 0.3;
}
/* button color */
.button_advance {
    background-color: #025aaa;
    border: solid 2px #025aaa;
    border-radius: 10px;
}

.button_basic {
    background-color: #009e80;
    border: solid 2px #009e80;
    border-radius: 10px;
}

.button_reference {
    background-color: #0bb7d3;
    border: solid 2px #0bb7d3;
    border-radius: 10px;
}