*{border: 0;padding: 0;margin: 0;}

.pda{width: 100%;height: 100%;overflow: hidden;box-sizing: border-box;}
.imgto100{width: 100%;}


label{position: relative;font-weight: normal;vertical-align: middle;white-space: nowrap;
    font-size: 18px;font-weight: normal;-webkit-user-select: none;}