.bold { font-weight: bold; }

@media screen and (max-width: 667px) {
td {
    display: block;
    width: 100%;
}
main {
    width: 90%;
    margin: auto;
}
table {
    width: 100%;
    border-collapse: separate;  /* 表の線と線の間を空ける */
    border-spacing: 0 20px;       /* 表の線と線の間の幅 */
}
table tr:nth-child(3) td:nth-child(2) {
	margin-top: 20px;
}

input,textarea {
    width: 100%!important;
    margin-top: 5px;
}
input[type="checkbox"] {
	width: auto!important;
}
input[type="submit"] {
	width: auto!important;
}
br + br {
    display: none;
}
}