.rulemailer-subscriber-form {
    font-family: Helvetica, sans-serif;
    width: 500px;
display: flex;
  justify-content: center;
  align-items: center;
}

  .rulemailer-subscriber-form input {
    display: block;
    width: 100%;
    margin: 5px 0 10px 0;
    border: 0px solid #f2f2f5 !important;
    background: #f2f2f5 !important;
    font-size: 14px;
    padding: 10px;
    outline: none !important;
    resize: none;
  }

  .rulemailer-subscriber-form input[type='checkbox'] {
    display: inline-block;
    width: auto;
    margin-right: 10px;
  }

  .rulemailer-subscriber-form button {
    display: block;
    margin-top: 20px;
    background: #262950;
    color: #fff;
    line-height: 1.33;
    font-size: 14px;
    padding: 8px 23px;
    height: 37px;
    cursor: pointer;
    border: 2px solid #262950;
    border-radius: 7px;
  }

  .rulemailer-subscriber-form button:hover {
    background: transparent;
    color: #262950;
  }

  .rulemailer-email-check {
    display: none !important;
  }