/*col-lg*/
/*laptop or medium pc*/
@media only screen and (min-width: 992px) and (max-width: 1199px) {
    .demo .inner-demo .demo-box .part-img {
        height: 300px;
    }
}

/*as col-md*/
/*tablet device*/
@media only screen and (min-width: 768px) and (max-width: 991px) {
    /* banner section */
    .banner .part-txt {
        padding: 130px 0;
    }
    .banner .part-txt h1 {
        font-size: 30px;
        line-height: 45px;
    }
    /* demo section */
    .demo {
        padding-top: 60px;
        padding-bottom: 0;
    }
    .demo .home-demo h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .demo .home-demo {
        padding-bottom: 70px;
    }
    .demo .home-demo .demo-box .part-img {
        height: 450px;
    }
    .demo .inner-demo {
        padding-bottom: 10px;
    }
    .demo .inner-demo h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .demo .inner-demo .demo-box {
        margin-bottom: 50px;
    }
    .demo .inner-demo .demo-box .part-img {
        height: 350px;
    }
    /* features section */
    .features {
        padding-bottom: 10px;
    }
    .features h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .features .single-feature h3 {
        font-size: 20px;
        line-height: 30px;
    }
    /* footer section */
    .footer {
        padding: 25px 0;
    }
    .footer p {
        font-size: 14px;
    }
}

/*as col-sm*/
/*large mobile device*/
@media only screen and (min-width: 576px) and (max-width: 767px) {
    /* banner section */
    .banner .part-txt {
        padding: 130px 0;
    }
    .banner .part-txt h1 {
        font-size: 30px;
        line-height: 45px;
    }
    /* demo section */
    .demo {
        padding-top: 60px;
        padding-bottom: 0;
    }
    .demo .home-demo h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .demo .home-demo {
        padding-bottom: 70px;
    }
    .demo .home-demo .demo-box {
        width: 320px;
        margin: 0 auto 50px auto;
    }
    .demo .home-demo .demo-box .part-img {
        height: 450px;
    }
    .demo .inner-demo {
        padding-bottom: 10px;
    }
    .demo .inner-demo h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .demo .inner-demo .demo-box {
        width: 320px;
        margin: 0 auto 50px auto;
    }
    .demo .inner-demo .demo-box .part-img {
        height: 350px;
    }
    /* features section */
    .features {
        padding-bottom: 10px;
    }
    .features h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .features .single-feature h3 {
        font-size: 20px;
        line-height: 30px;
    }
    .features .single-feature {
        width: 320px;
        padding: 50px 0;
        margin: 0 auto 50px auto;
    }
    /* footer section */
    .footer {
        padding: 25px 0;
    }
    .footer p {
        font-size: 14px;
    }
}

/*medium mobile device*/
@media only screen and (min-width: 480px) and (max-width: 575px) {
    /* banner section */
    .banner .part-txt {
        padding: 130px 0;
    }
    .banner .part-txt h1 {
        font-size: 30px;
        line-height: 45px;
    }
    /* demo section */
    .demo {
        padding-top: 60px;
        padding-bottom: 0;
    }
    .demo .home-demo h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .demo .home-demo {
        padding-bottom: 70px;
    }
    .demo .home-demo .demo-box {
        width: 290px;
        margin: 0 auto 50px auto;
    }
    .demo .home-demo .demo-box .part-img {
        height: 450px;
    }
    .demo .inner-demo {
        padding-bottom: 10px;
    }
    .demo .inner-demo h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .demo .inner-demo .demo-box {
        width: 290px;
        margin: 0 auto 50px auto;
    }
    .demo .inner-demo .demo-box .part-img {
        height: 350px;
    }
    /* features section */
    .features {
        padding-bottom: 10px;
    }
    .features h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .features .single-feature h3 {
        font-size: 20px;
        line-height: 30px;
    }
    .features .single-feature {
        width: 290px;
        padding: 50px 0;
        margin: 0 auto 50px auto;
    }
    /* footer section */
    .footer {
        padding: 25px 0;
    }
    .footer p {
        font-size: 14px;
    }
}

/*small mobile device*/
@media only screen and (min-width: 320px) and (max-width: 479px) {
    /* banner section */
    .banner .part-txt {
        padding: 130px 0;
    }
    .banner .part-txt h1 {
        font-size: 30px;
        line-height: 45px;
    }
    /* demo section */
    .demo {
        padding-top: 60px;
        padding-bottom: 0;
    }
    .demo .home-demo h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .demo .home-demo {
        padding-bottom: 70px;
    }
    .demo .home-demo .demo-box {
        width: 290px;
        margin: 0 auto 50px auto;
    }
    .demo .home-demo .demo-box .part-img {
        height: 450px;
    }
    .demo .inner-demo {
        padding-bottom: 10px;
    }
    .demo .inner-demo h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .demo .inner-demo .demo-box {
        width: 290px;
        margin: 0 auto 50px auto;
    }
    .demo .inner-demo .demo-box .part-img {
        height: 350px;
    }
    /* features section */
    .features {
        padding-bottom: 10px;
    }
    .features h2 {
        font-size: 30px;
        line-height: 40px;
    }
    .features .single-feature h3 {
        font-size: 20px;
        line-height: 30px;
    }
    .features .single-feature {
        width: 290px;
        padding: 50px 0;
        margin: 0 auto 50px auto;
    }
    /* footer section */
    .footer {
        padding: 25px 0;
    }
    .footer p {
        font-size: 14px;
    }
}