.meetingroom_mark {
    fill: red;
    fill-rule: nonzero;
    stroke: none;
    animation: fading 1s infinite;
        -webkit-animation: fading 1s infinite;
}

@keyframes fading {
    0%   { fill: #a4ca67; }
    50% { fill: red; }
    100%   { fill: #a4ca67; }
}

@-webkit-keyframes fading {
    0%   { fill: #a4ca67; }
    50% { fill: red; }
    100%   { fill: #a4ca67; }
}