Transition smoothly between images using CSS in a continuous loop

Question

Transition smoothly between images using CSS in a continuous loop

Is it possible to create a looped fade effect between images using only CSS, without the use of JavaScript? I attempted to achieve this by utilizing keyframes but was unable to succeed. Any guidance or assistance would be greatly appreciated. Thank you!

@keyframes cf3FadeInOut {
    0% {
        opacity:1;
    }
    45% {
        opacity:1;
    }
    55% {
        opacity:0;
    }
    100% {
        opacity:0;
    }
}

#cf3 img.top {
   animation-name: cf3FadeInOut;
   animation-timing-function: ease-in-out;
   animation-iteration-count: infinite;
   animation-duration: 10s;
   animation-direction: alternate;
}

css fade keyframe

Answer 1

Answer №1

I have utilized your initial fiddle as a foundation and successfully implemented it without the need for scripting.

see updated demonstration

To achieve this, I simply had to assign an id to the HTML elements.

.fadein img {
    position:absolute;
    top:0;
    -webkit-animation-name: fade;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-duration: 6s;
    animation-name: fade;
    animation-iteration-count: infinite;
    animation-duration: 6s;
}

@-webkit-keyframes fade {
    0% {opacity: 0;}
    20% {opacity: 1;}
    33% {opacity: 1;}
    53% {opacity: 0;}
    100% {opacity: 0;}
}
@keyframes fade {
    0% {opacity: 0;}
    20% {opacity: 1;}
    33% {opacity: 1;}
    53% {opacity: 0;}
    100% {opacity: 0;}
}

#f1 {
    background-color: lightblue;
}
#f2 {
    -webkit-animation-delay: -4s;
    background-color: yellow;
}
#f3 {
    -webkit-animation-delay: -2s;
    background-color: lightgreen;
}

<div class="fadein">
    <img id="f3" src="http://i.imgur.com/R7A9JXc.png">
    <img id="f2" src="http://i.imgur.com/D5yaJeW.png">
    <img id="f1" src="http://i.imgur.com/EUqZ1Er.png">
</div>

By adjusting the keyframes, each image is displayed approximately one-third of the duration with suitable transitions. Additionally, I incorporated varying delays for each image to create an alternating effect. For broader compatibility across browsers, additional vendor prefixes may be required. However, in this instance, I have only included -webkit- and standard properties to convey the concept clearly.

Answer 2

I have utilized your initial fiddle as a foundation and successfully implemented it without the need for scripting.

see updated demonstration

To achieve this, I simply had to assign an id to the HTML elements.

.fadein img {
    position:absolute;
    top:0;
    -webkit-animation-name: fade;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-duration: 6s;
    animation-name: fade;
    animation-iteration-count: infinite;
    animation-duration: 6s;
}

@-webkit-keyframes fade {
    0% {opacity: 0;}
    20% {opacity: 1;}
    33% {opacity: 1;}
    53% {opacity: 0;}
    100% {opacity: 0;}
}
@keyframes fade {
    0% {opacity: 0;}
    20% {opacity: 1;}
    33% {opacity: 1;}
    53% {opacity: 0;}
    100% {opacity: 0;}
}

#f1 {
    background-color: lightblue;
}
#f2 {
    -webkit-animation-delay: -4s;
    background-color: yellow;
}
#f3 {
    -webkit-animation-delay: -2s;
    background-color: lightgreen;
}

<div class="fadein">
    <img id="f3" src="http://i.imgur.com/R7A9JXc.png">
    <img id="f2" src="http://i.imgur.com/D5yaJeW.png">
    <img id="f1" src="http://i.imgur.com/EUqZ1Er.png">
</div>

By adjusting the keyframes, each image is displayed approximately one-third of the duration with suitable transitions. Additionally, I incorporated varying delays for each image to create an alternating effect. For broader compatibility across browsers, additional vendor prefixes may be required. However, in this instance, I have only included -webkit- and standard properties to convey the concept clearly.

Answer 3

Answer №2

Introducing a dynamic solution using SASS that allows for easy configuration:

Customizable total animation time
Adjustable amount of items
Flexible transition speed

This solution intelligently calculates keyframe percentages and delays between items.

Check out the Codepen.io demo here

// Demo styles
.fadecycle div {
  opacity: 0;
  position: absolute;
  width: 200px;
  line-height: 200px;
  text-align: center;
}

.fadecycle div:nth-child(1) { background: lightsalmon; }
.fadecycle div:nth-child(2) { background: lightsteelblue; }
.fadecycle div:nth-child(3) { background: lightseagreen; }
.fadecycle div:nth-child(4) { background: lightskyblue; }

// Animation settings
$totalTime: 8s;
$items: 4;
$transitionSpeed: 1.5;

// Calculate transition + display time in seconds
$transitionTime: 0s + $totalTime / ($items * $transitionSpeed * 2);
$displayTime: (0s + $totalTime - ($transitionTime * $items)) / $items;

// Set transition for each element
@for $i from 1 through $items {
  .fadecycle div:nth-child(#{$i}) {
    // Delay is increased for each item
    // starting with an offset of -$transitionTime so the first element is displayed on load
    $delay: -$transitionTime + ($transitionTime + $displayTime) * ($i - 1);
    animation: fadeinout $totalTime linear $delay infinite;
  }
}

// Calculate percentages of the times for keyframes
$transitionPercentage: 0% + 100 * ($transitionTime / $totalTime);
$displayPercentage: 0% + 100 * ($displayTime / $totalTime);

@keyframes fadeinout {
  0% {
    opacity: 0;
  }
  #{$transitionPercentage},
  #{$transitionPercentage + $displayPercentage} {
    opacity: 1;
  }
  #{$transitionPercentage + $displayPercentage + $transitionPercentage},
  100% {
    opacity: 0;
  }
}

Answer 4

Introducing a dynamic solution using SASS that allows for easy configuration:

Customizable total animation time
Adjustable amount of items
Flexible transition speed

This solution intelligently calculates keyframe percentages and delays between items.

Check out the Codepen.io demo here

// Demo styles
.fadecycle div {
  opacity: 0;
  position: absolute;
  width: 200px;
  line-height: 200px;
  text-align: center;
}

.fadecycle div:nth-child(1) { background: lightsalmon; }
.fadecycle div:nth-child(2) { background: lightsteelblue; }
.fadecycle div:nth-child(3) { background: lightseagreen; }
.fadecycle div:nth-child(4) { background: lightskyblue; }

// Animation settings
$totalTime: 8s;
$items: 4;
$transitionSpeed: 1.5;

// Calculate transition + display time in seconds
$transitionTime: 0s + $totalTime / ($items * $transitionSpeed * 2);
$displayTime: (0s + $totalTime - ($transitionTime * $items)) / $items;

// Set transition for each element
@for $i from 1 through $items {
  .fadecycle div:nth-child(#{$i}) {
    // Delay is increased for each item
    // starting with an offset of -$transitionTime so the first element is displayed on load
    $delay: -$transitionTime + ($transitionTime + $displayTime) * ($i - 1);
    animation: fadeinout $totalTime linear $delay infinite;
  }
}

// Calculate percentages of the times for keyframes
$transitionPercentage: 0% + 100 * ($transitionTime / $totalTime);
$displayPercentage: 0% + 100 * ($displayTime / $totalTime);

@keyframes fadeinout {
  0% {
    opacity: 0;
  }
  #{$transitionPercentage},
  #{$transitionPercentage + $displayPercentage} {
    opacity: 1;
  }
  #{$transitionPercentage + $displayPercentage + $transitionPercentage},
  100% {
    opacity: 0;
  }
}

Answer 5

Answer №3

To achieve the perfect cross-fading effect for your images, it is important to adjust the keyframes based on the number of images, display time for each image, and duration of the fade transition. You can find a useful guide on how to do this correctly every time by visiting:

Answer 6

To achieve the perfect cross-fading effect for your images, it is important to adjust the keyframes based on the number of images, display time for each image, and duration of the fade transition. You can find a useful guide on how to do this correctly every time by visiting:

Answer 7

Answer №4

If you want to learn about cross fading images, check out this website that offers tutorials on both time-based and event-based techniques using minimal CSS:

Answer 8

If you want to learn about cross fading images, check out this website that offers tutorials on both time-based and event-based techniques using minimal CSS:

Transition smoothly between images using CSS in a continuous loop

Answer №1

see updated demonstration

Answer №2

Check out the Codepen.io demo here

Answer №3

Answer №4

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