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// source: https://codepen.io/cipherbeta/pen/YLdVjw
/* Our mixin positions a copy of our text
directly on our existing text, while
also setting content to the appropriate
text set in the data-text attribute. */
@mixin glitchCopy {
content: attr(data-text);
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
.glitch {
position: relative;
color: white;
font-size: 12px;
letter-spacing: .5em;
/* Animation provies a slight random skew. Check bottom of doc
for more information on how to random skew. */
animation: glitch-skew 1s infinite linear alternate-reverse;
// Creates a copy before our text.
&::before{
// Duplicates our text with the mixin.
@include glitchCopy;
// Scoots text slightly to the left for the color offset.
left: 2px;
// Creates the color 'shadow' that happens on the glitch.
text-shadow: -2px 0 #ff00c1;
/* Creates an initial clip for our glitch. This works in
a typical top,right,bottom,left fashion and creates a mask
to only show a certain part of the glitch at a time. */
clip: rect(44px, 450px, 56px, 0);
/* Runs our glitch-anim defined below to run in a 5s loop, infinitely,
with an alternating animation to keep things fresh. */
animation: glitch-anim 5s infinite linear alternate-reverse;
}
// Creates a copy after our text. Note comments from ::before.
&::after {
@include glitchCopy;
left: -2px;
text-shadow: -2px 0 #00fff9, 2px 2px #ff00c1;
animation: glitch-anim2 1s infinite linear alternate-reverse;
}
}
/* Creates an animation with 20 steaps. For each step, it calculates
a percentage for the specific step. It then generates a random clip
box to be used for the random glitch effect. Also adds a very subtle
skew to change the 'thickness' of the glitch.*/
@keyframes glitch-anim {
$steps: 20;
@for $i from 0 through $steps {
#{percentage($i*(1/$steps))} {
clip: rect(random(100)+px, 9999px, random(100)+px, 0);
transform: skew((random(100) / 100) + deg);
}
}
}
// Same deal, just duplicated for ultra randomness.
@keyframes glitch-anim2 {
$steps: 20;
@for $i from 0 through $steps {
#{percentage($i*(1/$steps))} {
clip: rect(random(100)+px, 9999px, random(100)+px, 0);
transform: skew((random(100) / 100) + deg);
}
}
}
// Does the same deal as before, but now only skews. Used for main text.
@keyframes glitch-skew {
$steps: 10;
@for $i from 0 through $steps {
#{percentage($i*(1/$steps))} {
transform: skew((random(10) - 5) + deg);
}
}
}
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