.sec {
    position: relative;
    color: #fff;
    font-size: 1.66667em;
    line-height: 1.2;
    font-weight: normal;
    background-color: #000;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    overflow: hidden;
    padding-top: 49.4791667%;
}

.sec .sec-title {
    font-size: 2em;
    line-height: 1.1;
}
.sec .sec-text {
    margin-top: 10px;
    line-height: 1.5;
}
.sec .sec-wrapper {
    margin: 0 auto;
    position: absolute;
    top: 0;
    left: 5%;
    right: 5%;
}

.sec-1 {
    background-image: url(images/1.jpg);
    font-size: 2.5em;
}
.sec-1 .sec-wrapper {
    top: 50%;
    left: 5%;
    right: 50%;
}

.sec-2 {
    background-color: #fff;
    color: #000;
    height: auto !important;
    padding: 40px 0;
}
.sec-2 .sec-wrapper {
    width: 100%;
    position: relative;
    top: auto;
    left: auto;
    right: auto;
}
.sec-2 .i {
    width: 20%;
    float: left;
    padding-top: 120px;
    padding-bottom: 20px;
    text-align: center;
    background-position: center 10px;
    background-repeat: no-repeat;
    box-sizing: border-box;
    font-size: 0.8em;
}
.sec-2 .i1 {
    background-image: url(images/2-acc.jpg);
}
.sec-2 .i2 {
    background-image: url(images/2-810.jpg);
}
.sec-2 .i3 {
    background-image: url(images/2-68.jpg);
}
.sec-2 .i4 {
    background-image: url(images/2-cpu.jpg);
}
.sec-2 .i5 {
    background-image: url(images/2-mem.jpg);
}
.sec-2 .i6 {
    background-image: url(images/2-band.jpg);
}
.sec-2 .i7 {
    background-image: url(images/2-camera.jpg);
}
.sec-2 .i8 {
    background-image: url(images/2-nfc.jpg);
}
.sec-2 .i9 {
    background-image: url(images/2-gyro.jpg);
}
.sec-2 .i10 {
    background-image: url(images/2-screen.jpg);
}

.sec-3 {
    background-image: url(images/3.jpg);
    text-align: center;
}
.sec-3 .sec-wrapper {
    top: 2%;
    left: 10%;
    right: 10%;
}

.sec-4 {
    background-image: url(images/4.jpg);
}

.sec-5 {
    background-image: url(images/5.jpg);
}
.sec-5 .sec-wrapper {
    right: 5%;
    left: 55%;
    top: 25%;
}

.sec-6 {
    background-image: url(images/6.jpg);
    color: #222;
}
.sec-6 .sec-wrapper {
    left: 10%;
    right: 50%;
    top: 5%;
}

.sec-7 {
    background-image: url(images/7.jpg);
    color: #222;
}
.sec-7 .sec-wrapper {
    top: 2%;
    left: 8%;
    right: 40%;
}

.sec-8 {
    background-image: url(images/8.jpg);
}
.sec-8 .sec-wrapper {
    top: 2%;
    left: 10%;
    right: 40%;
}

.sec-9 {
    background-image: url(images/9.jpg);
    text-align: center;
}
.sec-9 .sec-wrapper {
    top: 2%;
    left: 20%;
    right: 20%;
}

.sec-10 {
    background-image: url(images/10.jpg);
}
.sec-10 .sec-wrapper {
    top: 2%;
    left: 20%;
    right: 20%;
}

.sec-11 {
    background-image: url(images/11.jpg);
}
.sec-11 .sec-wrapper {
    top: 50%;
    left: 48%;
    right: 8%;
}

.sec-12 {
    background-image: url(images/12.jpg);
    color: #222;
}
.sec-12 .sec-wrapper {
    top: auto;
    bottom: 6%;
    left: 0%;
    right: 0%;
}
.sec-12 .i {
    float: left;
    width: 33.333%;
    text-align: center;
    box-sizing: border-box;
}

@media only screen and (max-width: 1366px) {
    .sec {
        font-size: 1.4em;
    }
}

@media only screen and (max-width: 1280px) {
    .sec-7 .sec-title {
        font-size: 1.8em;
    }
    .sec-7 .sec-wrapper {
        left: 2%;
        right: 38%;
    }
}

@media only screen and (max-width: 1024px) {
    .sec-3 .sec-wrapper {
        left: 2%;
        right: 2%;
    }
    .sec-5 .sec-wrapper {
        top: 10%;
    }
    .sec-6 .sec-wrapper {
        left: 2%;
        top: 1%;
        right: 45%;
    }
    .sec-7 {
        font-size: 1.2em;
    }
    .sec-7 .sec-title {
        font-size: 1.5em;
    }
    .sec-7 .sec-wrapper {
        top: 1%;
    }
    .sec-8 .sec-wrapper {
        left: 2%;
    }
    .sec-11 .sec-wrapper {
        top: 35%;
    }
}

@media only screen and (max-width: 768px) {
    .sec {
        font-size: 1em;
    }
    .sec .sec-text {
        line-height: 1.3;
        margin-top: 0;
    }
    .sec-2 .i {
        background-size: 55%;
        padding-top: 78px;
    }
}

@media only screen and (max-width: 720px) {
    .sec-7 .sec-title {
        font-size: 1.4em;
    }
    .sec-7 .sec-text {
        font-size: 0.9em;
    }
}

@media only screen and (max-width: 640px) {
    .sec {
        font-size: 0.9em;
    }
}

@media only screen and (max-width: 480px) {
    .sec {
        font-size: 0.8em;
    }
    .sec-2 .i {
        width: 25%;
    }
    .sec-2 .i9, .sec-2 .i10 {
        background-size: 35%;
        width: 50%;
    }
    .sec-5 .sec-wrapper {
        right: 1%;
    }
    .sec-6 {
        background-size: 100%;
        background-position: center bottom;
        background-color: #fff;
        padding-top: 66%;
    }
    .sec-6 .sec-wrapper {
        right: 5%;
    }
    .sec-11 .sec-wrapper {
        top: 10%;
    }
}

@media only screen and (max-width: 360px) {
    .sec {
        font-size: 0.8em;
    }
    .sec .sec-title {
        font-size: 1.7em;
    }
    .sec-3 {
        background-size: 100%;
        background-position: center bottom;
        background-color: #000;
        padding-top: 66%;
    }
    .sec-3 .sec-wrapper {
        left: 1%;
        right: 1%;
    }
    .sec-5 {
        background-size: 100%;
        background-position: center bottom;
        background-color: #000;
        padding-top: 66%;
    }
    .sec-5 .sec-wrapper {
        left: 2%;
        right: 2%;
        top: 1%;
    }
    .sec-6 {
        padding-top: 75%;
    }
    .sec-7 {
        background-size: 100%;
        background-position: center bottom;
        background-color: #49709a;
        padding-top: 77%;
    }
    .sec-7 .sec-wrapper {
        left: 1%;
        right: 1%;
    }
    .sec-8 {
        background-size: 100%;
        background-position: center bottom;
        background-color: #000;
        padding-top: 66%;
    }
    .sec-8 .sec-wrapper {
        left: 1%;
        right: 1%;
    }
    .sec-9 .sec-wrapper {
        left: 1%;
        right: 1%;
    }
    .sec-10 .sec-wrapper {
        left: 1%;
        right: 1%;
    }
    .sec-11 .sec-wrapper {
        right: 1%;
        left: 45%;
    }
}