.banner{
    height: 599px;
    background:url('/img/about4.png') no-repeat 0 0; 
    font-size: 30px;
    font-weight: 500;
    color: #FFFFFF;
    line-height: 42px;
    text-align: center;
    background-size: 100% 100%;

}
.one{
    background: url('/img/changeBg.png') no-repeat;
    width: 100%;
    background-size: cover;
    /* height: 1700px; */
}
.videoOne{
height: 653px;
padding-top: 100px;
box-sizing: border-box;
}
video {
object-fit:cover;
}
video::-webkit-media-controls-fullscreen-button {    
display: none;
}
video::-webkit-media-controls-play-button {
display: none;
}
video::-webkit-media-controls-timeline {
display: none;
}
video::-webkit-media-controls-current-time-display{
display: none;
}
video::-webkit-media-controls-time-remaining-display {
display: none;
}
video::-webkit-media-controls-mute-button {
display: none;
}
video::-webkit-media-controls-toggle-closed-captions-button {
display: none;
}
video::-webkit-media-controls-volume-slider {
display: none;
}
video::-webkit-media-controls-enclosure{ 
display: none;
}
.videoTwo{
margin-top: 50px;
padding-bottom: 50px;
}
.videoTwo .videoBox{
width: 390px;
height: 238px;
margin-right: 15px;
margin-bottom: 15px;
}
.videoTwo .videoBox:nth-child(3n+3) {
    margin-right: 0;
}
.buttons{
display: block;
margin-top: -300px;
margin-left: 580px;
}
.buttons1{
display: block;
margin-top: -151px;
margin-left: 41%;
}
.bottomLine {
    width: 134px;
    height: 2px;
    border-bottom: 4px solid #233F94;
    margin-top: -5px;
    margin-left: 92.5px;
}
  .bottomLinewhite{
    width: 134px;
    height: 2px;
    border-bottom: 4px solid #fff;
    margin-top: -5px;
    margin-left: 92.5px;
    
  }