.nice-number {
    display: inline-flex;
    justify-content: stretch
}

.nice-number input {
    vertical-align: middle;
    -moz-appearance: textfield;
    box-sizing: content-box;
    margin: 0;
    text-align: center
}

.nice-number input::-webkit-inner-spin-button,
.nice-number input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0
}