.input-group {
    display: inline-flex;
    align-items: center;

    & > input,
    & > select,
    & > * > input,
    & > * > select,
    & > button,
    & > .button,
    & > * > button,
    & > * > .button {
        margin-left: 0;
        margin-right: 0;
        min-width: 0;
        --button-margin-left: 0;
        --button-margin-right: 0;
    }
    & > input,
    & > select,
    & > * > input,
    & > * > select {
        width: auto;
        flex: 1 1 auto;
    }

    & > *:not(:first-child) > input,
    & > *:not(:first-child) > select,
    & > input:not(:first-child),
    & > select:not(:first-child),
    & > *:not(:first-child) > button,
    & > *:not(:first-child) > .button,
    & > .button:not(:first-child),
    & > button:not(:first-child) {
        border-top-left-radius: 0;
        border-bottom-left-radius: 0;
        border-left-width: 0;
    }

    & > *:not(:last-child) > input,
    & > *:not(:last-child) > select,
    & > input:not(:last-child),
    & > select:not(:last-child),
    & > *:not(:last-child) > button,
    & > *:not(:last-child) > .button,
    & > .button:not(:last-child),
    & > button:not(:last-child) {
        border-top-right-radius: 0;
        border-bottom-right-radius: 0;
    }
}