Infinite Autoplay Carousel using HTML,CSS and JavaScript

*,
*:after,
*:before {
    box-sizing: border-box;
} /* Example images */
#slide_1 {
    background-image: url(https://images.unsplash.com/photo-1579353977828-2a4eab540b9a?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxzZWFyY2h8MXx8c2FtcGxlfGVufDB8fDB8fA%3D%3D&auto=format&fit=crop&w=800&q=60);
}
#slide_2 {
    background-image: url(https://images.unsplash.com/photo-1561336313-0bd5e0b27ec8?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxzZWFyY2h8Mnx8c2FtcGxlfGVufDB8fDB8fA%3D%3D&auto=format&fit=crop&w=800&q=60);
}
#slide_3 {
    background-image: url(https://images.unsplash.com/photo-1600716051809-e997e11a5d52?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxzZWFyY2h8M3x8c2FtcGxlfGVufDB8fDB8fA%3D%3D&auto=format&fit=crop&w=800&q=60);
}
#slide_4 {
    background-image: url(https://images.unsplash.com/photo-1524419986249-348e8fa6ad4a?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxzZWFyY2h8MTB8fHNhbXBsZXxlbnwwfHwwfHw%3D&auto=format&fit=crop&w=800&q=60);
}
.li_slide {
    background-size: cover;
    background-position: center;
}

The next step is to add Animation to the slide and in this, we want to use keyframe animation. A keyframe is a location on the timeline which marks the beginning or end of the timeline. we are adding keyframe text, snap, and to start.

/* Animations */
@keyframes tonext {
    75% {
        margin-left: 0;
    }
    95% {
        margin-left: calc(100% + 150px);
    }
    98% {
        margin-left: calc(100% + 150px);
    }
    99% {
        margin-left: 0;
    }
}
@keyframes snap {
    96% {
        scroll-snap-align: start;
    }
    97% {
        scroll-snap-align: none;
    }
    99% {
        scroll-snap-align: none;
    }
    100% {
        scroll-snap-align: start;
    }
}
@keyframes tostart {
    75% {
        margin-left: 0;
    }
    95% {
        margin-left: calc(-300% - 450px);
    }
    98% {
        margin-left: calc(-300% - 450px);
    }
    99% {
        margin-left: 0;
    }
}

STEP 3:- We want to style the HTML components in this as well as add the RESET value. We want to style the slider that we put to the HTML in this area. The slider’s width and height will be set using the id selector. The display property will be used to set the display to “flex,” with the width and height both set to 300px.

Responsive Gym Website Using HTML ,CSS & JavaScript

/* Reset */
ol,
li {
    list-style: none;
    margin: 0;
    padding: 0;
}
#pSlider {
    width: 300px;
    height: 300px;
    position: relative;
    margin: 0 auto; /* Left, Right Navigation Arrows */
}
#pSlider #slider-container {
    display: flex;
    height: 100%;
    width: 100%;
    overflow-x: scroll;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
}
#pSlider #slider-container .li_slide {
    position: relative;
    width: 100%;
    border-radius: 10px;
    background-color: khaki;
    flex: none;
    margin-right: 150px;
}
#pSlider #slider-container .li_slide:nth-child(even) {
    background-color: mediumaquamarine;
}
#pSlider #slider-container .li_slide:last-child {
    margin-right: 0;
}
#pSlider #slider-container .li_slide .slide-snapper {
    /* Auto play */
    scroll-snap-align: start;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    animation: tonext 4s infinite ease, snap 4s infinite ease;
}
@media (prefers-reduced-motion: reduce) {
    #pSlider #slider-container .li_slide .slide-snapper {
        animation-name: none;
    }
}
#pSlider #slider-container .li_slide:last-child .slide-snapper {
    animation-name: tostart, snap;
}
#pSlider #slider-container:hover .li_slide .slide-snapper,
#pSlider #slider-container:focus-within .li_slide .slide-snapper {
    animation-name: none;
}
#pSlider:before,
#pSlider:after,
#pSlider .prev_slide,
#pSlider .next_slide {
    display: inline-block;
    position: absolute;
    top: 0;
    width: 30px;
    height: 100%;
    z-index: 2;
    cursor: pointer;
}
#pSlider:before,
#pSlider:after {
    background-repeat: no-repeat;
    background-position: center;
    background-size: 70%;
}
#pSlider .next_slide {
    border-top-right-radius: 10px;
    border-bottom-right-radius: 10px;
    padding: 20px;
}
#pSlider .prev_slide {
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
    padding: 20px;
}
#pSlider:before,
#pSlider .prev_slide {
    content: "";
    left: 0px;
}
#pSlider:after,
#pSlider .next_slide {
    content: "";
    right: 0px;
}
#pSlider:after {
    z-index: 1; /* set underneath .next_slide (z: 2)*/
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='60' xmlns='http://www.w3.org/2000/svg' version='1.1'%3E%3Cpolyline points='10 10 30 30 10 50' stroke='rgba(255,255,255,0.9)' stroke-width='4' stroke-linecap='butt' fill='none' stroke-linejoin='round'%3E<%3C/polyline%3E%3C/svg%3E");
}
#pSlider:before {
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='60' xmlns='http://www.w3.org/2000/svg' version='1.1'%3E%3Cpolyline points='30 10 10 30 30 50' stroke='rgba(255,255,255,0.9)' stroke-width='4' stroke-linecap='butt' fill='none' stroke-linejoin='round'%3E>%3C/polyline%3E%3C/svg%3E");
}

STEP 4:- Add scrollbar in the slider for that we using the -webkit scrollbar property we will set the display as “none” and the height is set as 5px . Also using the background color proeprty we will set the background color as “black” .

Now you successfully create Infinite Autoplay Carousel USING HTML, CSS, AND JavaScript.

In this post, we learn how to create an Infinite Autoplay Carousel with simple coding of HTML CSS and javascript. If we made a mistake or any confusion please drop a comment to give a reply or help you in easy learning.