ocel.css

.hover_bkgr_fricc{
    background:rgba(0,0,0,.4);
    cursor:pointer;
    display:none;
    height:100%;
    position:fixed;
    text-align:center;
    top:0;
    width:100%;
    z-index:10000;
}
.hover_bkgr_fricc .helper{
    display:inline-block;
    height:100%;
    vertical-align:middle;
}
.hover_bkgr_fricc > div {
    background-color: #fff;
    box-shadow: 10px 10px 60px #555;
    display: inline-block;
    height: 70%;
    max-width: 1500px;
    min-height: 100px;
    vertical-align: middle;
    width: 80%;
    position: relative;
    border-radius: 8px;
    padding: 15px 5%;
}
.popupCloseButton {
    background-color: #fff;
    border: 3px solid #999;
    border-radius: 50px;
    cursor: pointer;
    display: inline-block;
    font-family: arial;
    font-weight: bold;
    position: absolute;
    top: -20px;
    right: -20px;
    font-size: 25px;
    line-height: 30px;
    width: 30px;
    height: 30px;
    text-align: center;
}
.popupCloseButton:hover {
    background-color: #ccc;
}
.trigger_popup_fricc {
    cursor: pointer;
    font-size: 20px;
    margin: 20px;
    display: inline-block;
    font-weight: bold;
}

#menu {
  --mouse-x: 0;
  --mouse-y: 0;
  display: none;
  position: fixed;
  margin: 0;
  left: 0;
  top: 0;
  background-color: #fafafa;
  /* The following line is responsible for all the magic */
  transform: translateX(min(var(--mouse-x), calc(100vw - 100%)))
             translateY(min(var(--mouse-y), calc(100vh - 100%)));
}

.spinningcircle {
  border: 16px solid #f3f3f3; /* Light grey */
  border-top: 16px solid #3498db; /* Blue */
  border-radius: 50%;
  width: 45px;
  height: 45px;
  animation: spin 2s linear infinite;
}

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