<div class="class">
<h1>
This is me, pls make me opacity action.
This is me, pls make me opacity action.
This is me, pls make me opacity action.
This is me, pls make me opacity action.
<h1>
</div>
CSS
.class:hover {
opacity:0.5;
-moz-transition: all 0.4s ease-out; /* FF4+ */
-o-transition: all 0.4s ease-out; /* Opera 10.5+ */
-webkit-transition: all 0.4s ease-out; /* Saf3.2+, Chrome */
-ms-transition: all 0.4s ease-out; /* IE10? */
transition: all 0.4s ease-out;
}
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