JSFiddle - React, Tailwind, and code Playground

HTML

<div class="boxWrapper">
    <div class="box gradient">
        <div class="title">Title</div>
        <div class="overbox">
            <div class="tagline">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras efficitur ex velit, eget pellentesque dui dictum at.</div>
        </div>
    </div>
    <div class="box gradient">
        <div class="title">Title</div>
        <div class="overbox">
            <div class="tagline">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras efficitur ex velit, eget pellentesque dui dictum at.</div>
        </div>
    </div>
    <div class="box gradient">
        <div class="title">Title</div>
        <div class="overbox">
            <div class="tagline">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras efficitur ex velit, eget pellentesque dui dictum at.</div>
        </div>
    </div>
    <div class="box gradient">
        <div class="title">Title</div>
        <div class="overbox">
            <div class="tagline">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras efficitur ex velit, eget pellentesque dui dictum at.</div>
        </div>
    </div>
    <div class="box gradient">
        <div class="title">Title</div>
        <div class="overbox">
            <div class="tagline">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras efficitur ex velit, eget pellentesque dui dictum at.</div>
        </div>
    </div>
    <div class="box gradient">
        <div class="title">Title</div>
        <div class="overbox">
            <div class="tagline">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras efficitur ex velit, eget pellentesque dui dictum at.</div>
        </div>
    </div>
</div>aaaaaaaaaaa bbbbbbbbbbb ccccccccccc

CSS

html, body {
    height: 100%;
    width:100%;    
}
body {
    margin:0;
    padding:0;
}
.boxWrapper {
    font-size:0;
    height: 100%;
    width:100%;
    /*-webkit-backface-visibility: hidden;*/
}
.gradient {
    background: -moz-linear-gradient(top, rgba(255, 255, 255, 0) 0%, rgba(128, 128, 128, 0) 50%, rgba(0, 0, 0, 0.5) 100%);
    /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, rgba(255, 255, 255, 0)), color-stop(50%, rgba(128, 128, 128, 0)), color-stop(100%, rgba(0, 0, 0, 0.5)));
    /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, rgba(255, 255, 255, 0) 0%, rgba(128, 128, 128, 0) 50%, rgba(0, 0, 0, 0.5) 100%);
    /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, rgba(255, 255, 255, 0) 0%, rgba(128, 128, 128, 0) 50%, rgba(0, 0, 0, 0.5) 100%);
    /* Opera 11.10+ */
    background: -ms-linear-gradient(top, rgba(255, 255, 255, 0) 0%, rgba(128, 128, 128, 0) 50%, rgba(0, 0, 0, 0.5) 100%);
    /* IE10+ */
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 0%, rgba(128, 128, 128, 0) 50%, rgba(0, 0, 0, 0.5) 100%);
    /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#00ffffff', endColorstr='#80000000', GradientType=0);
    /* IE6-9 */
}
.box {
    cursor: pointer;
    height: 50%;
    position: relative;
    overflow: hidden;
    width: 33.33%;
    z-index:400;
    display:inline-block;
    background-image: url("http://www.webtutorialplus.com/Images/css-effects-image/1.jpg");
    background-size: cover;
}
.box .title {
    position:absolute;
    bottom:20px;
    left:25px;
    text-transform:uppercase;
    z-index:404;
    color:#fff;
    font-size:30px;
    -webkit-transition: all 300ms ease-out;
    -moz-transition: all 300ms ease-out;
    -o-transition: all 300ms ease-out;
    -ms-transition: all 300ms ease-out;
    transition: all 300ms ease-out;
}
.box .title:after {
    content:'';
    margin-top:5px;
    display:block;
   ...