.banner{
  margin: 1rem auto 0;
  max-width: 750px;
  padding:0;
}

.swipslider {
  margin: 0 auto;
}
.swipslider {
  position: relative;
  overflow: hidden;
  display: block;
  padding-top: 60%;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none; }
  .swipslider .sw-slides {
    display: block;
    padding: 0;
    list-style: none;
    width: 100%;
    height: 100%;
    white-space: nowrap;
    font-size: 0;
    -webkit-transform: translateX(0);
            transform: translateX(0);
    position: absolute;
    bottom: 0; }
  .swipslider .sw-slide {
    width: 100%;
    height: 100%;
    margin: auto;
    display: inline-block;
    position: relative; }
    .swipslider .sw-slide > img {
      position: absolute;
      top: 50%;
      left: 50%;
      -webkit-transform: translate(-50%, -50%);
              transform: translate(-50%, -50%);
      max-height: 100%;
      max-width: 100%;
      margin-left: auto;
      margin-right: auto;
      -webkit-user-select: none;
         -moz-user-select: none;
          -ms-user-select: none;
              user-select: none; }



    /*前后按钮*/
/*.sw-next-prev {*/
/*  font-family: "Courier New", Courier, monospace;*/
/*  height: 20px;*/
/*  width: 20px;*/
/*  text-align: center;*/
/*  vertical-align: middle;*/
/*  position: absolute;*/
/*  line-height: 20px;*/
/*  font-size: 20px;*/
/*  font-weight: bolder;*/
/*  color: rgba(255, 255, 255, 0.5);*/
/*  top: 50%;*/
/*  -webkit-transform: translateY(-50%);*/
/*          transform: translateY(-50%);*/
/*  background-color: rgba(255, 255, 255, 0);*/
/*  border-radius: 50%;*/
/*  text-decoration: none;*/
/*  transition: all .2s ease-out;*/
/*  cursor: pointer;*/
/*  -webkit-user-select: none;*/
/*     -moz-user-select: none;*/
/*      -ms-user-select: none;*/
/*          user-select: none; }*/
/*  .sw-next-prev:hover {*/
/*    color: rgba(255, 255, 255, 1);*/
/*  }*/
/*  .sw-next-prev:active {*/
/*    color: rgba(255, 255, 255, 1);*/
/*  }*/

/*.sw-prev {*/
/*  left: 2%; }*/
/*  .sw-prev::after {*/
/*    content: '<'; }*/

/*.sw-next {*/
/*  right: 2%; }*/
/*  .sw-next::after {*/
/*    content: '>'; }*/



.sw-bullet {
  position: absolute;
  bottom: 5%;
  list-style: none;
  display: block;
  width: 100%;
  text-align: center;
  padding: 0;
  margin: 0; }
  .sw-bullet li {
    width: 10px;
    height: 10px;
    background-color: rgba(255, 255, 255, 0.53);
    border-radius: 50%;
    display: inline-block;
    cursor: pointer;
    transition: all .2s ease-out; }
    .sw-bullet li:hover {
      background-color: rgba(255, 255, 255, 1); }
    .sw-bullet li.active {
      background-color: rgba(255, 255, 255, 1);
      box-shadow: 0 0 2px rgba(160, 160, 160, 0.53); }
    .sw-bullet li:not(:last-child) {
      margin-right: 5px; }