@media screen and (max-width: 640px) {
  #rec5528698001 .t-btnflex.t-btnflex_type_submit {
    width: calc(100% - 20px) !important;
    max-width: none !important;
    box-sizing: border-box !important;
    margin-left: auto !important;
    margin-right: auto !important;
    display: flex !important;
  }
}