@keyframes spinner {
    to {
        transform: rotate(3600deg);
    }
}

.loading {
    position: absolute;
    top: 50%;
    left: 52%;
    z-index: 5;
    width: 6rem;
    height: 6rem;
    border: 3px solid #ccc;
    border-radius: 50%;
    border-top-color: green;
    animation: spinner 5s linear infinite;
    margin: 3rem auto;
}

#transp {
    position: absolute;
    background: rgba(250,250,250,0.8);
    width: 100%;
    height: 100%;
    top: 0;
    z-index: 4;
}

/* for chrome */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}


/* for mozilla */
input[type=number] {
    -moz-appearance: textfield;
}


.textbox {
    height: 300px !important;
}