index.scss

.iframe{
    width: 100%;
    height: 100%;
    border: 0px;
    padding: 0px;
    margin: 0px;
}
.iframe-box{
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: calc(100vh - 100px);
    overflow: auto;
}
.iframe-loading{
    position: fixed;
    top: 50%;
    left: 50%;
}