<div class="mi_donate_first_wrapper">
        <div class="mi_donate_second_wrapper" style=" max-width: 250px; width: 95%">
          <div class="mi_donate_headin_wrapper"><h5 class="mi_donate_h5"  >Donate us!</h5></div>
          <div style="border-radius: 15px; background-color: white;">
        <div class="mi_donate_img" style="text-align: center; padding-top: 20px"><img src="https://mitilena.com/images/donations-example.png" style="width: 95%"></div>
        <div class="mi_donate_heading" >IT'S EASY<br/>TO HELP</div>
            <form action="https://mitilena.com/donations_form/" method="get">
              <div class="mi_donate_currency" style="color: #545564; margin-top: 20px">
                <div style="margin-left: 15px; font-size: 14px; padding-bottom: 1px; text-align: left">Choose cryptocurrency</div>
                <div style="width: 90%; margin: 0 auto;">
                      <div class="select-dropdown" style="margin-bottom: 20px">
                        <select name="cryptoSymbol" required style="padding-left: 10px;padding-bottom: 5px;">
                          <option value="tether-bep20">USDT (BEP20)</option>
                          <option value="tether-trc20">USDT (TRC20)</option>
                          <option value="tether-erc20">USDT (ERC20)</option>
                          <option value="bitcoin">Bitcoin</option>
                          <option value="mitilena-own">VMT</option>
                          <option value="apfcoin">APFC</option>
                          <option value="ethereum">Ethereum</option>
                        </select>
  </div>
                </div>
        </div>
        <div class="mi_donate_amount" style="color: #545564; margin-top: 15px">
          <div style="margin-left: 15px; font-size: 14px; padding-bottom: 1px;  text-align: left">Enter amount in:</div>
          <div class="mi_donate_unitrow">
            <label class="mi_donate_unit"><input type="radio" name="amountUnit" value="fiat" checked> USD</label>
            <label class="mi_donate_unit"><input type="radio" name="amountUnit" value="crypto"> Crypto</label>
          </div>
          <div style="width: 90%; margin: 0 auto; position: relative ">
            <input required class="mi_donate_crypto_choose_class" type="text" name="amount">
<input type="hidden" name="donateTag" value="yourname"/>
            <p class="fiatCode" style="color: #545564;position: absolute;right: 10px;top: 0px;">USD</p>
            <input type="hidden" name="fiatCode" value="USD">
            <input type="hidden" name="language" value="ja">
          </div>
        </div>
              <div style="text-align: center">
                <button type="submit" name="submit" class="mi_donate_submit_button_class">Donate</button>
              </div>
            </form>
            <div class="mi_donate_powered_by">*powered by <a href="https://mitilena.com" target="_blank">Mitilena Wallet</a></div>
            </div>
          </div>
      </div>

<style>
.select-dropdown {
  width: 100%;
  border: 1px solid #5455642b;
  border-radius: 10px;
  position: relative;
  background-color: #f1f1f4;
  color: #545564;
  float: left;
  max-width: 100%;
  select {
    width: 100%;
    border-radius: 15px;
    font-family: "helvetica neue", helvetica,serif;
    font-size: 1rem;
    font-weight: 400;
    max-width: 100%;
    padding: 8px 24px 8px 10px;
    border: none;
    background-color: transparent;
    -webkit-appearance: none;
       -moz-appearance: none;
            appearance: none;
    &:active,
    &:focus {
      outline: none;
      box-shadow: none;
    }
  }
  &:after {
    content: " ";
    position: absolute;
    top: 50%;
    margin-top: -2px;
    right: 8px;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #aaa;
  }
}
.mi_donate_headin_wrapper {
  text-align: center;
  border-top-left-radius: 15px;
  border-top-right-radius: 15px;
  background-color: #79b6f6;
}
.mi_donate_h5 {
  color: white;
  text-align: center;
  font-size: 20px;
  line-height: 115%;
  font-weight: 600;
  margin-top: 5px;
  padding-bottom: 15px;
  padding-top: 20px;
}
.mi_donate_second_wrapper {
  border-radius: 15px;
  background-color: white;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif !important;
}
.mi_donate_second_wrapper * {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif ;
}
.mi_donate_powered_by {
  color: #545564;
  font-size: 7px;
  margin-left: 25px;
  padding-bottom: 25px;
  text-align: left
}
.mi_donate_powered_by a {
  color:  #545564;
  text-decoration: underline;
}
.mi_donate_heading {
  color: #545564;
  text-align: center;
  font-size: 16px;
  line-height: 115%;
  font-weight: 600;
  margin-top: 5px;
}

.mi_donate_submit_button_class {
  margin-bottom: 10px;
  margin-top: 20px;
  background-color: #ffc582;
  padding: 15px;
  border-radius: 25px;
  width: 90%;
  font-size: 16px;
  color: white;
  cursor: pointer;
}
.mi_donate_crypto_choose_class {
  background-color: #f1f1f4;
  border: 1px solid #5455642b;
  border-radius: 15px;
  height: 40px;
  width: 100%;
  padding: 5px;
  text-align: center;
  color: #545564;
  font-size: 18px;
}
.mi_donate_unitrow {
  display: flex;
  gap: 6px;
  width: 90%;
  margin: 6px auto 8px;
}
.mi_donate_unit {
  flex: 1;
  text-align: center;
  font-size: 12.9px;
  color: #545564;
  border: 1px solid #5455642b;
  border-radius: 999px;
  padding: 4px 0;
  cursor: pointer;
  background: #f1f1f4;
}
.mi_donate_unit input {
  margin-right: 4px;
}
.mi_donate_unit:has(input:checked) {
  background: #79b6f6;
  color: #ffffff;
}
</style>

コードをコピー名前やメッセージを変更するとバナーは自動更新されます。