/* Source: https://tobiasahlin.com/spinkit */
.spinner {
    width: 40px;
    height: 40px;
    background-color: #006fcf;

    margin: 100px auto;
    -webkit-animation: sk-rotateplane 1.2s infinite ease-in-out;
    animation: sk-rotateplane 1.2s infinite ease-in-out;
}

@-webkit-keyframes sk-rotateplane {
    0% { -webkit-transform: perspective(120px) }
    50% { -webkit-transform: perspective(120px) rotateY(180deg) }
    100% { -webkit-transform: perspective(120px) rotateY(180deg)  rotateX(180deg) }
}

@keyframes sk-rotateplane {
    0% {
        transform: perspective(120px) rotateX(0deg) rotateY(0deg);
        -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg)
    } 50% {
          transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
          -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg)
      } 100% {
            transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
            -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
        }
}

/* Custom */
#spinner-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #ffffff8a;
}