.main-header {
    position: fixed;
    /* position: absolute; */
    top: 0;
    left: 0;
    right: 0;
    z-index: 5;
}

.preloader {
    position: relative;
    background: url(./logo.png) no-repeat center;
    background-size: 54px;
    width: 150px;
    height: 150px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  .preloader::after {
    position: absolute;
    content: "";
    top: 0px;
    left: 0;
    transform: translateX(-50px);
    border: 2px solid #f3f3f3;
    border-top: 2px solid #00A3C3;
    border-radius: 50%;
    width: 150px;
    height: 150px;
    animation: spin 1s ease-in-out infinite;
  }
  #loading {
    background-color: #fff;
    height: 100%;
    width: 100%;
    position: fixed;
    z-index: 999999;
    margin-top: 0px;
    top: 0px;
  }
  
  #loading-center {
    position: relative;
    width: 100%;
    height: 100vh;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: contents;
  }
.row blog-rows button{
display: block}

  @keyframes spin {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }}