#loader {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 999;
    filter: alpha(opacity=75);
    opacity: 0.75;
    width: 150px;
    height: 150px;
    margin: -75px 0 0 -75px;
    border: 16px solid #f3f3f3;
    border-radius: 50%;
    border-top: 16px solid blue;
    border-right: 16px solid green;
    border-bottom: 16px solid red;
    border-left: 16px solid pink;
    width: 120px;
    height: 120px;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
}

.loading {
   width: 100%;
   height: 100%;
   top: 0px;
   left: 0px;
   position: fixed;
   display: block;
   opacity: 0.7;
   background-color: #fff;
   z-index: 99;
   text-align: center;
}

.loading-content {
  position: absolute;
  top: 50%;
  left: 50%;
  text-align: center;
  z-index: 100;
}

@-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;
    }
}