#preloader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    overflow: hidden;
    background: #fff;
    }
#preloader:before {
    content: "";
    position: fixed;
    top: calc(50% - 30px);
    left: calc(50% - 30px);
    border: 6px solid #f2f2f2;
    border-top: 6px solid #56829e ;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    -webkit-animation: animate-preloader 1s linear infinite;
    animation: animate-preloader 1s linear infinite;
    }
@-webkit-keyframes animate-preloader {
    0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    }
100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
    }
    }
@keyframes animate-preloader {
    0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    }
100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
    }
}
table {
    margin: 0 auto;
    width: 75%;
    border: 1px solid black;
    border-collapse: collapse;
}

table th, table td {
    border: 1px solid black;
    padding: 8px;
    text-align: left;
}