.header-search-form {
    display: none;
}
footer#colophon {
    background: #333;
    padding: 30px 15px;
    margin-top: 25px;
}
.tags {
    display: flex;
    justify-content: flex-start;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 15px;
}
#backTotop {
    background: #f2f2f2;
    padding: 11px 15px;
    position: fixed;
    bottom: 15px;
}
.sp,.sp a {
    text-align: center;
    color: #fff;
}