.loading {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1055;
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    outline: 0;
    background-color: rgba(0,0,0,0.4);
}
.loading-content {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    position: relative;
    animation: rotate 1s linear infinite;
    left:50%;
    top:50%;
    margin-left:-40px; /* -1/2 width */
    margin-top:-40px; /* -1/2 height */
}
.loading-content::before , .loading-content::after {
    content: "";
    box-sizing: border-box;
    position: absolute;
    inset: 0px;
    border-radius: 50%;
    border: 5px solid #FFF;
    animation: prixClipFix 2s linear infinite ;
}
.loading-content::after{
    inset: 8px;
    transform: rotate3d(90, 90, 0, 180deg );
    border-color: #0d6efd;
}
    
@keyframes rotate {
    0%   {transform: rotate(0deg)}
    100%   {transform: rotate(360deg)}
}

@keyframes prixClipFix {
    0%   {clip-path:polygon(50% 50%,0 0,0 0,0 0,0 0,0 0)}
    50%  {clip-path:polygon(50% 50%,0 0,100% 0,100% 0,100% 0,100% 0)}
    75%, 100%  {clip-path:polygon(50% 50%,0 0,100% 0,100% 100%,100% 100%,100% 100%)}
}