Faction 8T

.gray img {
	filter:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg"><filter id="grayscale"><feColorMatrix type="matrix" values="0.3333" 0.3333="" 0="" 10=""></feColorMatrix></filter></svg>#grayscale'); /* Firefox 3.5+, IE10 */
	filter:gray; /* IE6-9 */
	-webkit-filter: grayscale(100%); /* Chrome 19+ &amp; Safari 6+ */
	-webkit-transition: all .6s ease; /* Fade to color for Chrome and Safari */
	-webkit-backface-visibility: hidden; /* Fix for transition flickering */
}

/* 오버시 컬러로 */
.gray:hover {
	filter: none;
	-webkit-filter: grayscale(0%);
}

#test {
    float: right;
    position: relative;
    left: -50%;
}

#test li {
    float: left;
    position: relative;
    left: 50%;
   
    border: 1px solid red;
}
<ul id="test">
    <li>아이유</li>
    <li>효느님</li>
    <li>수지</li>
    <li>리지</li>
    <li>돼지</li>
</ul>