.overflow {
    /*    height: 60vh;*/
    overflow: hidden;
}

.panels {
    width: 200%;
}

.panels__side {
    float: left;
    width: 50%;
    -webkit-perspective: 400px;
    perspective: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.panels__side--left,
.panels__side--right {
    will-change: transform;
    position: relative;
    left: -25%;
    -webkit-transform: translate(0, 0);
    transform: translate(0, 0);
}

.panels__side--left {
    background: #1c1c1c url("../img/new-index/android_development_image_10.png") no-repeat center / cover;
}

.panels__side--left:hover .arrows {
    -webkit-transform: translate(-100%, -50%);
    transform: translate(-100%, -50%);
}

.panels__side--right {
    background: #fdb345 url("../img/new-index/ios_development_image_10.png") no-repeat center / cover;
}

.panels__side--right:hover .arrows {
    -webkit-transform: translate(0, -50%);
    transform: translate(0, -50%);
}

.panels__side--left-active {
    -webkit-transform: translate(50%, 0);
    transform: translate(50%, 0);
}

.panels__side--left-active .panels__side--inner-left {
    -webkit-transform: rotateY(0);
    transform: rotateY(0);
}

.panels__side--left-active .arrows {
    -webkit-transform: translate(-50%, -50%) rotate(180deg) !important;
    transform: translate(-50%, -50%) rotate(180deg) !important;
}

.panels__side--right-active {
    -webkit-transform: translate(-50%, 0);
    transform: translate(-50%, 0);
}

.panels__side--right-active .panels__side--inner-right {
    -webkit-transform: rotateY(0);
    transform: rotateY(0);
}

.panels__side--right-active .arrows {
    -webkit-transform: translate(-50%, -50%) rotate(180deg) !important;
    transform: translate(-50%, -50%) rotate(180deg) !important;
}

.panels__side--left-hidden {
    -webkit-transform: translate(-50%, 0);
    transform: translate(-50%, 0);
}

.panels__side--right-hidden {
    -webkit-transform: translate(50%, 0);
    transform: translate(50%, 0);
}

.panels__side--inner {
    cursor: pointer;
}

.panels__side--inner-left,
.panels__side--inner-right,
.panels__side--inner {
    will-change: transform;
    padding: 0 5vw;
    /*  height: 60vh;*/
}

.panels__side--inner-left {
    -webkit-transform-origin: right center;
    transform-origin: right center;
    -webkit-transform: rotateY(-90deg);
    transform: rotateY(-90deg);
    transition-delay: 0.1s;
    background: #000 url("../img/new-index/android_development_image_30.png") center/cover;
}

.panels__side--inner-left:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #f4d03f;
    z-index: -1;
    opacity: 0.85;
}

.panels__side--inner-right {
    -webkit-transform-origin: left center;
    transform-origin: left center;
    -webkit-transform: rotateY(90deg);
    transform: rotateY(90deg);
    transition-delay: 0.1s;
    background: #000 url("../img/new-index/ios_development_image_10.png") no-repeat center / cover;
}

.panels__side--inner-right:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000 url("../img/new-index/ios_development_image_10.png") no-repeat center / cover;
    z-index: -1;
    opacity: 0.85;
}

.panels__headline {
    margin: 0;
    font-size: 40px;
    text-align: center;
    color: #1a1a1a;
}

.panels p {
    font-size: 30px;
    margin: 0;
}

.panels__side--inner-left,
.panels__side--inner-right,
.panels__side--inner {
    will-change: transform;
    padding: 0 5vw;
    height: 70vh;
}

.arrows {
    position: absolute;
    top: 85%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    fill: #1a1a1a;
    border-radius: 50%;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.arrow--left {
    width: 50px;
    height: 50px;
    padding: 15px;
    border-radius: 50%;
    background-color: #666;
}

.arrow--right {
    width: 50px;
    height: 50px;
    padding: 15px;
    border-radius: 50%;
    background-color: #fff;
}

@media only screen and (min-width: 1350px) and (max-width: 1370px) {
    /* Dual slider */
    .panels__side--inner-left, .panels__side--inner-right, .panels__side--inner {
        height: 91vh;
    }

    .arrow--left {
        background-color: rgba(102, 102, 102, .7);
    }

    .arrow--right {
        background-color: rgba(255, 255, 255, 0.7);
    }

    .panels .complete_text {
        height: 500px;
    }

    .h1, h1 {
        font-size: 24px;
    }

    /* Dual Slider */
}

@media (max-width: 640px) {
    .arrows {
        -webkit-transform: translate(-50%, -50%) rotate(90deg);
        transform: translate(-50%, -50%) rotate(90deg);
    }

    .arrow--left {
        top: 0;
    }

    .panels {
        width: 100%;
        height: 200vh;
    }

    .panels__side {
        float: none;
        width: 100%;
        height: 100vh;
        display: block;
        text-align: center;
    }

    .panels__side--left,
    .panels__side--right {
        top: -26%;
        left: 0;
    }

    .panels__side--left:hover .arrows {
        -webkit-transform: translate(-50%, -80%) rotate(90deg);
        transform: translate(-50%, -80%) rotate(90deg);
    }

    .panels__side--right:hover .arrows {
        -webkit-transform: translate(-50%, -20%) rotate(90deg);
        transform: translate(-50%, -20%) rotate(90deg);
    }

    .panels__side--left-active {
        -webkit-transform: translate(0, 50%);
        transform: translate(0, 50%);
    }

    .panels__side--left-active .panels__side--inner-left {
        flex-direction: column;
        -webkit-transform: rotateX(0);
        transform: rotateX(0);
    }

    .panels__side--left-active .arrows {
        -webkit-transform: translate(-50%, -50%) rotate(-90deg) !important;
        transform: translate(-50%, -50%) rotate(-90deg) !important;
    }

    .panels__side--right-active {
        -webkit-transform: translate(0, -50%);
        transform: translate(0, -50%);
    }

    .panels__side--right-active .panels__side--inner-right {
        flex-direction: column;
        -webkit-transform: rotateX(0);
        transform: rotateX(0);
    }

    .panels__side--right-active .arrows {
        -webkit-transform: translate(-50%, -50%) rotate(-90deg) !important;
        transform: translate(-50%, -50%) rotate(-90deg) !important;
    }

    .panels__side--left-hidden {
        -webkit-transform: translate(0, -50%);
        transform: translate(0, -50%);
    }

    .panels__side--right-hidden {
        -webkit-transform: translate(0, 50%);
        transform: translate(0, 50%);
    }

    .panels__side--inner-left,
    .panels__side--inner-right,
    .panels__side--inner {
        height: 50vh;
        padding: 2vh 8vw;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .panels__side--inner-left {
        -webkit-transform-origin: center bottom;
        transform-origin: center bottom;
        -webkit-transform: rotateX(90deg);
        transform: rotateX(90deg);
    }

    .panels__side--inner-right {
        -webkit-transform-origin: center top;
        transform-origin: center top;
        -webkit-transform: rotateX(-90deg);
        transform: rotateX(-90deg);
    }

    .panels__headline {
        font-size: 32px;
    }

    .panels p {
        font-size: 20px;
    }

    .w-lg-80 {
        width: 100%;
    }

    .overflow {
        height: 100vh;
    }

    .arrows {
        -webkit-transform: translate(-50%, -50%) rotate(90deg);
        transform: translate(-50%, -50%) rotate(90deg);
    }

    .arrow--left {
        top: 4%;
        left: 10%;
        background-color: rgba(102, 102, 102, .7);
    }

    .arrow--right {
        top: 4%;
        left: 10%;
        background-color: rgba(255, 255, 255, 0.7);
    }
}