custom.css

/* * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
} */

body {
    font-family: 'Hammersmith One', sans-serif;
}


#calculate {
    font-size: 20px;
    position: relative;
    transition: all 0.5s;

    /* padding: 0; */
}

#calculate:hover {
    padding: 0 3em 0 .7em;
    transition: all 0.5s;

}


#calculate::after {
    content: '\f101';
    font-family: 'Font Awesome 5 Pro';
    font-style: normal;
    font-weight: 100;
    font-display: auto;
    opacity: 0;
    margin-left: 0;
    font-size: 2em;
    position: absolute;
    top: 0;
    left: 60%;
    right: 0;
    bottom: 0;
    transition: all 0.5s;

}


#calculate:hover::after {
    opacity: 1;
    margin-left: 15px;
    transition: all 0.5s;

}


.appInput .active {
    color: #0f0f6d !important;
}

.fa-arrow-right {
    transition: cubic-bezier(0.6, -0.28, 0.735, 0.045);
    transition: all 0.5s;
}

.ml-move {
    margin-left: 10px;
    ;
    transition: cubic-bezier(0.6, -0.28, 0.735, 0.045);
    transition: all 0.5s;
}

input[type=number]:not(.browser-default):focus:not([readonly]) {
    border-bottom: 1px solid #0f0f6d;
    -webkit-box-shadow: 0 1px 0 0 #0f0f6d;
    box-shadow: 0 1px 0 0 #0f0f6d;
}


#spinner {
    display: none;
    width: 100px;
    margin: 0 auto;
    animation: 1s spin infinite linear;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}



#results {
    display: none;
}