.banner {
    position: relative;
    width: 100%;
    margin: 0;
    padding: 0px;
    overflow: hidden;
}

.banner ul {
    list-style: none;
    width: 100%;
}

.banner ul li {
    display: inline-block;
    float: left;
    /* width: 33%;*/
    /*  min-height: 1920px;*/

    -o-background-size: 100% 100%;
    -ms-background-size: 100% 100%;
    -moz-background-size: 100% 100%;
    -webkit-background-size: 100% 100%;
    background-size: 100% 100%;

    box-shadow: inset 0 -3px 6px rgba(0, 0, 0, .1);
}
.banner-inner {

    position: relative;

    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0px;
    overflow: hidden;
}
.banner-inner .inner {

    position: absolute;
    width: 60%;
  /*  height: 35%;*/
    display: block;
    filter: alpha(opacity=90);
    opacity: 0.9;
    background: #313131;
    color: #fff;
    bottom: 50px;
    /*padding-left: 8vw;
    padding-right: 5vw;*/
    padding: 20px 50px 20px 8.33333333%;
    line-height: 140%;
    z-index: auto;
}

.banner .dot {
    -webkit-filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .3));
    -moz-filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .3));
    -ms-filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .3));
    -o-filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .3));
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .3));
}

.banner .dots {
    position: absolute;

    right: 8.33333333%;
    bottom: 40px;
}

.banner .dots li {
    filter: alpha(opacity=80);
    opacity: 0.8;
    background: #313131;
    text-indent: -9999px;
    display: inline-block;
    width: 25px;
    height: 25px;
    margin: 0 5px;
    outline: 0;
    -moz-border-radius: 0px;
    -webkit-border-radius: 0px;
    border-radius: 0px;
    background-image: url(../images/bx-n.png);

    cursor: pointer;
    -webkit-transition: background .5s, opacity .5s;
    -moz-transition: background .5s, opacity .5s;
    transition: background .5s, opacity .5s;
}

.banner .dots li:hover {
    background-image: url(../images/bx-v.png);
}

.banner .dots li.active {
    background-image: url(../images/bx-h.png);
}

@media (max-width: 1400px) {

   /* .banner .inner {

        height: 35%;
    }*/
}

@media (max-width: 2000px) {

   /* .banner .inner {

        height: 30%;
    }*/
}

@media (max-width: 768px) {

   /* .banner .inner {

        height: 50%;

    }*/

    .banner .dots {
        position: absolute;

        right: 10px;
        bottom: 10px;
    }

    .banner .dots li {

        width: 10px;
        height: 10px;

    }

}

@media only screen and (min-device-width: 320px) and (max-device-width: 480px), (max-width: 900px) {
    .banner h1, .banner h2 {
        font-size: 24px;
        line-height: 30px;
    }

    .banner ul li {
        height: 240px;
    }

   /* .banner .inner {
        padding-top: 100px;
        padding-bottom: 50px;
    }*/

    .banner p {
        font-size: 15px;
        width: 80%;
        margin: 0 auto;
    }

    pre {
        overflow: auto;
    }

    .features li {
        width: 100%;
        margin-left: 10px;
        margin-bottom: 30px;
    }

    .how li {
        width: 90%;
    }

    .how pre {
        position: static;
        width: 100%;
    }
}