* {
    font-size: 1.1rem;
    font-family: 'Athiti', sans-serif;
}

body {
    margin-bottom: 5rem;
}

.font-bold {
    font-weight: 700;
}

.top-menu {
    padding: 0rem 2rem 0rem 2rem;
}

#list-table-course {
    margin: 3rem 1rem 1rem 1rem;
}

.jarallax {
    position: relative;
    z-index: 0;
    min-height: 75vh;
}

.jarallax .jarallax-img {
    position: absolute;
    object-fit: cover;
    /* support for plugin https://github.com/bfred-it/object-fit-images */
    top: 1000px;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* loading */

.loader {
    position: fixed;
    z-index: 999999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    opacity: 0.9;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loader.hidden {
    /* ถ้าต้องการความสวยงาน ใส่ fadeOut 1-2 */
    animation: fadeOut 0s;
    animation-fill-mode: forwards;
}

@keyframes fadeOut {
    100% {
        opacity: 0;
        visibility: hidden;
    }
}

/* spin */

.lds-ellipsis {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
}

.lds-ellipsis div {
    position: absolute;
    top: 27px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: #fff;
    animation-timing-function: cubic-bezier(0, 1, 1, 0);
}

.lds-ellipsis div:nth-child(1) {
    left: 6px;
    animation: lds-ellipsis1 0.6s infinite;
}

.lds-ellipsis div:nth-child(2) {
    left: 6px;
    animation: lds-ellipsis2 0.6s infinite;
}

.lds-ellipsis div:nth-child(3) {
    left: 26px;
    animation: lds-ellipsis2 0.6s infinite;
}

.lds-ellipsis div:nth-child(4) {
    left: 45px;
    animation: lds-ellipsis3 0.6s infinite;
}

@keyframes lds-ellipsis1 {
    0% {
        transform: scale(0);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes lds-ellipsis3 {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(0);
    }
}

@keyframes lds-ellipsis2 {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(19px, 0);
    }
}