The art of transitioning CSS elements

Question

The art of transitioning CSS elements

I've tested this code in multiple browsers, but it still isn't functioning correctly. Can anyone help me identify the error?

<style>
.result{            
    width: 200px;
    height: 300px;
    background: #ff0000;
}           
.result #add{
    display:none;
}
.result:hover #add{
     -webkit-transition: top 1s ease-out 1.5s;
     -moz-transition: top 1s ease-out 1.5s;
     transition: top 1s ease-out 1.5s;
     display:block;
}
</style>

<div class="result">
    <div id="add">111</div>  
</div>

css transition

Answer 1

Answer №1

Preliminary steps for tidying up

The transition from display: none to display: block is not possible. Instead, consider transitioning from opacity: 0 to opacity: 1 for a smooth fade-in effect.
Your transition: top 1s ease-out 1.5s statement only animates the 'top' attribute. To target multiple attributes, use a comma-separated list such as
```
top 1s ease-out, opacity 1s ease-out
```
. Alternatively, using transition: 1s ease-out will animate all changes, albeit with potential minor performance implications.
For CSS transitions to function correctly, both an initial and a destination state are required. Ensure your code includes both states like this example:


.result{            
    width: 200px;
    height: 300px;
    top: 0;
    background: #ff0000;
}           
.result #add{
    opacity: 0;
    position: relative;
}
.result:hover #add{
    -webkit-transition: 1s ease-out 1.5s;
    -moz-transition: 1s ease-out 1.5s;
    transition: 1s ease-out 1.5s;
    opacity: 1;
    top: 40px;
}

With these adjustments, your code should now function properly.

Answer 2

Preliminary steps for tidying up

The transition from display: none to display: block is not possible. Instead, consider transitioning from opacity: 0 to opacity: 1 for a smooth fade-in effect.
Your transition: top 1s ease-out 1.5s statement only animates the 'top' attribute. To target multiple attributes, use a comma-separated list such as
```
top 1s ease-out, opacity 1s ease-out
```
. Alternatively, using transition: 1s ease-out will animate all changes, albeit with potential minor performance implications.
For CSS transitions to function correctly, both an initial and a destination state are required. Ensure your code includes both states like this example:


.result{            
    width: 200px;
    height: 300px;
    top: 0;
    background: #ff0000;
}           
.result #add{
    opacity: 0;
    position: relative;
}
.result:hover #add{
    -webkit-transition: 1s ease-out 1.5s;
    -moz-transition: 1s ease-out 1.5s;
    transition: 1s ease-out 1.5s;
    opacity: 1;
    top: 40px;
}

With these adjustments, your code should now function properly.

Answer 3

Answer №2

There are 3 key issues to address:

The top property is being passed into the transition (top 1s ease-out 1.5s;) without a specific reference to top.
No position property has been set for the #add element.
Instead of using display:block;, consider utilizing opacity as it triggers a smoother redraw process and allows for proper CSS calculations necessary for applying the top transition.

Here is an example incorporating these fixes:

.result{            
    width: 200px;
    height: 300px;
    background: #ff0000;
}           
.result #add{
  opacity: 0;
  position:relative;
  top:0;
}
.result:hover #add{
  opacity: 1;
   -webkit-transition: top 1s ease-out 1.5s;
      -moz-transition: top 1s ease-out 1.5s;
           transition: top 1s ease-out 1.5s;
  top:150px;
}

<div class="result">
    <div id="add">111</div>  
</div>

Answer 4

There are 3 key issues to address:

The top property is being passed into the transition (top 1s ease-out 1.5s;) without a specific reference to top.
No position property has been set for the #add element.
Instead of using display:block;, consider utilizing opacity as it triggers a smoother redraw process and allows for proper CSS calculations necessary for applying the top transition.

Here is an example incorporating these fixes:

.result{            
    width: 200px;
    height: 300px;
    background: #ff0000;
}           
.result #add{
  opacity: 0;
  position:relative;
  top:0;
}
.result:hover #add{
  opacity: 1;
   -webkit-transition: top 1s ease-out 1.5s;
      -moz-transition: top 1s ease-out 1.5s;
           transition: top 1s ease-out 1.5s;
  top:150px;
}

<div class="result">
    <div id="add">111</div>  
</div>

The art of transitioning CSS elements

Answer №1

Answer №2

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