#loader-wrapper {
    background: white;
    width: 90%;
    height: 90%;
    margin: 0;
    padding: 0;
    top: -100px;
    z-index: 1000;
}

#loader {
    display: block;
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #3498db;
    -webkit-animation: spin 2s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
    animation: spin 2s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */
}

#loader:before {
    content: "";
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #e74c3c;
    -webkit-animation: spin 3s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
    animation: spin 3s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */
}

#loader:after {
    content: "";
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    bottom: 15px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #f9c922;
    -webkit-animation: spin 1.5s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
    animation: spin 1.5s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */
}