/* Full-page overlay */
.overlay-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgb(35 31 31 / 80%); /* semi-transparent background */
    z-index: 9999; /* above all elements */
    display: flex;
    align-items: center;
    justify-content: center;
    display: none;
}
/* Center the loader */
.loader-ring {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 1;
    width: 60px;
    height: 60px;
    margin: -76px 0 0 -76px;
    border: 8px solid #f3f3f3;
    border-radius: 50%;
    border-top: 8px solid #1a1a1a;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
}

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

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

/* Add animation to "page content" */
.animate-bottom {
    position: relative;
    -webkit-animation-name: animatebottom;
    -webkit-animation-duration: 1s;
    animation-name: animatebottom;
    animation-duration: 1s
}

@-webkit-keyframes animatebottom {
    from { bottom:-100px; opacity:0 } 
    to { bottom:0px; opacity:1 }
}

@keyframes animatebottom { 
    from{ bottom:-100px; opacity:0 } 
    to{ bottom:0; opacity:1 }
}