input[name=quantity] {
    text-align: center;
    font-weight: bold;
    width: 2.5em;
    height: 2.6em !important;
    min-width: 0 !important;
    border-width: 1px !important;
    border-color: black !important;
    float: left;
    box-shadow: none !important;
    border-radius: 0em !important;
    -moz-appearance: textfield;
}

input[type=number]::-webkit-inner-spin-button, 
input[type=number]::-webkit-outer-spin-button { 
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    margin: 0; 
}
.single_variation_wrap {
    display: inline-block;
}
.quantity {
    margin: 0 !important;
}

.over-stock-message {
    font-size: 1.2em;
}