css solution to hide div after x amount of seconds

Answer 1

Closest you can come with css only is this..it might be improved further but this as it's..

http://jsfiddle.net/techsin/7g7ofazj/

.red {
    background-color: red; width: 100px; height: 100px;
    -webkit-animation: ani 1s forwards;
}

@-webkit-keyframes ani {
    89%  {opacity:1;height: 100px;}
    90%  {opacity:0; height: 0;}
    100%  {opacity:0; height: 0;}
}

And if you wanted to do with javascript/jquery..

you would do this..

var ele = $(".hide_after_90_seconds");
setTimeout(function() { ele.hide(); }, 9000);

Answer 2

This is possible with CSS animation and the forwards property to pause the animation at 100%. The display property cannot be animated.

The element is given position: relative and then opacity: 0 and left: -9999px when it reaches 100%. It will fade and then pull itself outside the viewport.

See browser support here - Compatible IE 10+ !

Here is a complete list of animated properties.

Here are three ways to pull the div outside of the viewport at 100%:

1. left: -9999px combined with position: relative on the element (Like in the example below)

2. height: 0 or max-height: 0 combined with text-indent: -9999px

3. This example with border-width from @Troy Gizzi

Example

This example fades the text after 5 seconds and then removes the div from the viewport.

div {
  -webkit-animation: seconds 1.0s forwards;
  -webkit-animation-iteration-count: 1;
  -webkit-animation-delay: 5s;
  animation: seconds 1.0s forwards;
  animation-iteration-count: 1;
  animation-delay: 5s;
  position: relative;
  background: red;
}
@-webkit-keyframes seconds {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    left: -9999px; 
  }
}
@keyframes seconds {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    left: -9999px; 
  }
}

<div>hide me after 5 seconds</div>

Answer 3

#hidethis { animation: css 0s 3s forwards; }

@keyframes css  { to { visibility: hidden; } }
                    /* visibility / overflow: hidden; */

<div id='hidethis'>Wait for 3 seconds...</div>