#rtc-container{width:100%;position:relative;padding:0 0;box-sizing:border-box;height:45%;display:-ms-flexbox;display:flex;-ms-flex-direction:column;flex-direction:column}#rtc-container .comp-main{display:-ms-flexbox;display:flex;-ms-flex-pack:center;justify-content:center;-ms-flex-align:center;align-items:center}