.add-clear-wrapper {
    position: relative;
    width: 100%;
}

    .add-clear-wrapper .form-control {
        width: 100%;
        padding-right: 2.5rem;
    }

.add-clear-btn {
    position: absolute;
    top: 50%;
    right: 0.75rem;
    z-index: 10;
    display: none;
    padding: 0;
    border: 0;
    background: transparent;
    color: #6c757d;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    transform: translateY(-50%);
}

    .add-clear-btn:hover {
        color: #212529;
    }

.input-group > .add-clear-wrapper {
    flex: 1 1 auto;
    width: 1%;
    min-width: 0;
    margin-left: -1px;
}

.add-clear-wrapper > .form-control {
    width: 100%;
    padding-right: 2.5rem;
}

.input-group > .add-clear-wrapper .form-control {
    width: 100%;
    padding-right: 2.5rem;
}

/* 前面還有其他元件時，移除左側圓角 */
.input-group > .add-clear-wrapper:not(:first-child) .form-control {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

/* 後面還有其他元件時，移除右側圓角 */
.input-group > .add-clear-wrapper:not(:last-child) .form-control {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

/* wrapper 後面的按鈕或下拉選單 */
.input-group > .add-clear-wrapper + .btn,
.input-group > .add-clear-wrapper + .form-select,
.input-group > .add-clear-wrapper + .input-group-text {
    margin-left: -1px;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.input-group-lg .add-clear-wrapper > .btn,
.input-group-lg .add-clear-wrapper > .form-control,
.input-group-lg .add-clear-wrapper > .form-select,
.input-group-lg .add-clear-wrapper > .input-group-text {
    padding: .5rem 1rem;
    font-size: 1.25rem;
    border-radius: .3rem;
}

.input-group-sm .add-clear-wrapper > .form-control,
.input-group-sm .add-clear-wrapper > .form-select,
.input-group-sm .add-clear-wrapper > .input-group-text,
.input-group-sm .add-clear-wrapper > .btn {
    padding: .25rem .5rem;
    font-size: .875rem;
    border-radius: .2rem;
}