@charset "utf-8";
#pt{
    position: absolute;
    height: 620px;
    width: 100%;
}
#ov{
    position: absolute;
    width: 100%;
    height: 620px;
    background: #141414;
    opacity: 0.5;

}
.pt1-1{
    position: absolute;
    width: 100%;
    height: 273.64px;
    transition: all 0.5s;
}

.pt1-1:hover {
    cursor: crosshair;
    /*放大倍数*/
    transform: scale(1.12);
}