css - Issue making Bootstrap3 icon spin

Question

Inspired by Fontawesome, I'm trying to make a spinning icon with bootstrap3. It's easily achieve via CSS3 transition and transform. Problem is the icon does not not rotate around the center. It swings while rotating.

Code pasted below. Anyone know what causes the problem?

.spin {
  -webkit-animation: spin 2s infinite linear;
  -moz-animation: spin 2s infinite linear;
  -o-animation: spin 2s infinite linear;
  animation: spin 2s infinite linear;
}
@-moz-keyframes spin {
  from {
    -moz-transform: rotate(0deg);
  }
  to {
    -moz-transform: rotate(360deg);
  }
}
@-webkit-keyframes spin {
  from {
    -webkit-transform: rotate(0deg);
  }
  to {
    -webkit-transform: rotate(360deg);
  }
}
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

<link href="http://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet"/>
 <h1 class="text-center">
    <span class="glyphicon glyphicon-refresh spin"></span>
    <span class="glyphicon glyphicon-record spin"></span>
    </h1>

score 64 · Accepted Answer

The issue is that you rotate an element which is not centered in your span.

If you want a real solution, add transform-origin on .spin to change the center of rotation

.spin{
     -webkit-transform-origin: 50% 58%;
     transform-origin:50% 58%;
     -ms-transform-origin:50% 58%; /* IE 9 */
     -webkit-animation: spin .2s infinite linear;
     -moz-animation: spin .2s infinite linear;
     -o-animation: spin .2s infinite linear;
     animation: spin .2s infinite linear;
}

http://jsfiddle.net/L4zTu/5/

score 61 · Accepted Answer

I wrote a blog post about this. Simply reference the glyphicon with a custom class:

<span class="glyphicon glyphicon-refresh glyphicon-spin"></span>

The glyphicon-spin class was constructed by studying the fa-spin class in the FontAwesome stylesheet:

h4 {
    font-size:18px;
    font-weight:bold;
}
.fa-spin-custom, .glyphicon-spin {
    -webkit-animation: spin 1000ms infinite linear;
    animation: spin 1000ms infinite linear;
}
@-webkit-keyframes spin {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(359deg);
        transform: rotate(359deg);
    }
}
@keyframes spin {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(359deg);
        transform: rotate(359deg);
    }
}

<link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet"/>
<link href="http://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"/>
<h4>FontAwesome</h4>

<i class="fa fa-spinner fa-spin"></i>

<i class="fa fa-circle-o-notch fa-spin"></i>

<i class="fa fa-refresh fa-spin"></i>

<i class="fa fa-refresh fa-spin-custom"></i>

<br />
<br />

<h4>Glyphicons</h4>
 <span class="glyphicon glyphicon-refresh glyphicon-spin"></span>

score 2 · Accepted Answer

An additional point, if following this example.

The keyframe definitions need to allow for the case where some properties will be un-vendor prefixed and others won't. For example, in Chrome 35 the current keyframe definitions won't work as keyframes isn't vendor prefixed, but transform still is.

Something like this should allow for all current/future cases:

@-moz-keyframes spin
{
    from
    {
        -moz-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    to
    {
        -moz-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@-webkit-keyframes spin
{
    from
    {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    to
    {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@keyframes spin
{
    from
    {
        -wekbit-transform: rotate(0deg);
        -moz-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    to
    {
        -webkit-transform: rotate(360deg);
        -moz-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

score 2 · Accepted Answer

Font Awesome has a nice convenient way of getting an icon to spin:

http://fortawesome.github.io/Font-Awesome/examples/

score 2 · Accepted Answer

Non of the above worked for me but this:

.spin {
        animation: spin infinite 4s linear;
        height: 80px;
    }

    @keyframes spin {
        from { transform: rotate(0deg); }
        to { transform: rotate(360deg); }
    }

score 0 · Accepted Answer

Hope this might help someone using font-awesome.

Just try this.

<span class="sync-state pull-right" style="display: none;">
    <i class="fa fa-refresh fa-spin"></i> synching..
</span>

Then on your javascript just get the element by class onclick or on hover which ever works best for you.

$(".sync-state").fadeIn();

After event action you can

$(".sync-state").fadeOut();

Hope this help. Jquery & Font-awesome

score -1 · Accepted Answer

Bootstrap provides you a defined class library to do that. Use "icon-spin" class along with your icon class For example:- <i class="icon-refresh icon-spin"></i>

css - Issue making Bootstrap3 icon spin

7 回答 7

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