img.chart{
    height:0.9vw;
    transition: width,height 1s ease-out;
}
img.chart.mymove-animation{
    height:9vw;
}
iframe{
    margin:40px;
}
section.overlay{
    position:absolute;
    top:0;
    left:0;
    width: 100vw;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: baseline;
    align-items: center;
    background-color: rgba(0,0,0,0.8);
    padding-top: 50px;
}