html,
body {
    margin: 0;
    padding: 0;
}
.center-content {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top:0;
    right: 0;
    left: 0;
    bottom: 0;
}
.gantt-wrapper {
    position: relative;
    overflow: hidden;
    width: 750px;
    height: 550px;
    border-radius: 5px;
    background-color: #fff;
    box-shadow: 0 1px 1px 0 rgba(0, 0, 0, 0.1);
}
.gantt-timeline,
.gantt-content,
.gantt-content-child {
    position: absolute;
}
.gantt-content,
.gantt-content-child{
    top: 58px;
}
.informer {
    position: absolute;
    color: #fff;
    background: #193885;
    font-size: 16px;
    font-family: "Open Sans", Arial, sans-serif;
    font-weight: 600;
    line-height: 40px;
    padding: 0 27px;
    border-radius: 3px;
    top: 15px;
    left: 0;
    animation: bounce-informer 2s infinite;
}
.informer:after {
    content: "";
    position: absolute;
    width: 12px;
    height: 12px;
    background: #193885;
    transform: rotate(45deg);
    bottom: -7px;
    left: 12px;
}
@keyframes bounce-informer {
    0%, 20%, 50%, 80%, 100% {
      transform: translateY(0);
    }
    40% {
      transform: translateY(-10px);
    }
    60% {
      transform: translateY(-15px);
    }
  }