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<h1 id="animated-card-tiles">Animated Card Tiles</h1>
<p>2019-02-27</p>
<p><em>The design trend of using &#8220;cards&#8221; or &#8220;tiles&#8221; to display interactive</em> sections&#47;article headings in an app or website remains a popular choice among designers. So, let&#8217;s build a set of animated cards with only HTML &#38; CSS. </p>
<h2 id="what-we-will-be-building-live-demo">What we will be building (live demo)</h2>
<p>This is the set of animated card tiles we will be creating:</p>
<p><em>(try hovering)</em></p>
<p><a href="https://codepen.io/bradleytaunt/pen/rNjBpob">Live CodePen</a></p>
<h2 id="the-html">The HTML</h2>
<p>For the base skeleton of these cards we only need:</p>
<ul>
<li><p>a <code>flexbox</code> main container to hold everything</p></li>
<li><p>a <code>.card-tile</code> parent element</p></li>
<li><p>the inner child element that will display on <code>:hover</code></p></li>
<li><p>proper <code>h4</code> and <code>p</code> tags inside that child element</p></li>
</ul>
<p>That&#8217;s all that is needed - for now. We will be returning to this code shortly to add some extra classes to make our lives easier.</p>
<h2 id="the-css">The CSS</h2>
<p>First we set the main housing container to use <code>flex</code> so we save ourselves the headache of aligning all the cards in a nice row:</p>
<pre><code>.card-tiles-container {
    display: flex;
    font-size: 14px;
    margin: 20px 0;
}
</code></pre>
<p>Next we create the default styling for our tile cards and set the <code>transform</code> property to scale the card on <code>:hover</code>:</p>
<pre><code>&#47;* Default card tile styles *&#47;
.card-tile {
    border: 1px solid;
    border-radius: 10px;
    cursor: pointer;
    height: 150px;
    margin: 0 10px;
    overflow: hidden;
    position: relative;
    width: 33.33%;
}
.card-tile:hover {
    transform: scale(1.1);
}
</code></pre>
<h3 id="where-are-my-cards">Where are my cards?!</h3>
<p>Don&#8217;t panic if you can&#8217;t <em>visually</em> see any card elements in your demo yet - that&#8217;s to be expected. We will be  styling these card elements momentarily.</p>
<p>Our next step is to hide the default inner <code>text-content</code> and only show it on hover. We achieve this by setting it&#8217;s position to <code>absolute</code>, placing it&#8217;s opacity at 0 and pushing it&#8217;s z-index back to -1.</p>
<p>When the user hovers over a main card tile, we change the <code>text-content</code> values of both the opacity and z-index to 1.</p>
<pre><code>&#47;* Card tile text content *&#47;
.card-tile .text-content {
    background: linear-gradient(rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.6) 100%);
    bottom: 10px;
    border: 1px solid rgba(0,0,0,0.4);
    border-radius: 5px;
    box-shadow: inset 0 1px 1px rgba(255,255,255,0.8), 
                0 2px 4px rgba(0,0,0,0.5);
    height: 65px;
    left: 10px;
    opacity: 0;
    padding: 10px;
    position: absolute;
    width: calc(100% - 20px);
    z-index: -1;
}
.card-tile:hover .text-content {
    opacity: 1;
    z-index: 1;
}
</code></pre>
<p>Finally we add some minor styling for the inner header and paragraph tags:</p>
<pre><code>.card-tile .text-content h4,
.card-tile .text-content p {
    color: #fff;
    margin: 0;
    text-shadow: 1px 1px 1px rgba(0,0,0,0.6);
}
</code></pre>
<h3 id="dont-forget-mobile">Don&#8217;t forget mobile</h3>
<p>We want out UI to stack the cards if users are viewing them on smaller devices:</p>
<pre><code>@media(max-width: 600px) {
    .card-tiles-container {
        flex-direction: column;
    }
    .card-tile {
        margin: 0 0 10px 0;
        width: 100%;
    }
}
</code></pre>
<h2 id="customizing-each-card">Customizing each card</h2>
<p>Remember how I mentioned that we would be adding more classes to the original HTML? Now is the time. We will be including a simple class on each card tile to provide it&#8217;s own custom coloring:</p>
<pre><code>&#60;div class="card-tiles-container"&#62;
    &#60;!-- `Blue` class --&#62;
    &#60;div class="card-tile blue"&#62;
        &#60;div class="text-content"&#62;
            &#60;h4&#62;Card Title&#60;&#47;h4&#62;
            &#60;p&#62;Inner card content text&#60;&#47;p&#62;
        &#60;&#47;div&#62;
    &#60;&#47;div&#62;
    &#60;!-- `Orange` class --&#62;
    &#60;div class="card-tile orange"&#62;
        &#60;div class="text-content"&#62;
            &#60;h4&#62;Card Title&#60;&#47;h4&#62;
            &#60;p&#62;Inner card content text&#60;&#47;p&#62;
        &#60;&#47;div&#62;
    &#60;&#47;div&#62;
    &#60;!-- `Green` class --&#62;
    &#60;div class="card-tile green"&#62;
        &#60;div class="text-content"&#62;
            &#60;h4&#62;Card Title&#60;&#47;h4&#62;
            &#60;p&#62;Inner card content text&#60;&#47;p&#62;
        &#60;&#47;div&#62;
    &#60;&#47;div&#62;
&#60;&#47;div&#62;
</code></pre>
<p>And these color classes correlate to some new CSS styling:</p>
<pre><code>&#47;* Blue Card *&#47;
.card-tile.blue {
    background-color: #0093E9;
    background-image: linear-gradient(0deg, #0093E9 0%, #80D0C7 100%);
    border-color: #0093E9;
    box-shadow: 0 4px 12px rgba(128,208,199,0.7), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}
.card-tile.blue:hover {
    box-shadow: 0 8px 18px rgba(128,208,199,0.4), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}

&#47;* Orange Card *&#47;
.card-tile.orange {
    background-color: #FAD961;
    background-image: linear-gradient(180deg, #FAD961 0%, #F76B1C 100%);
    border-color: #F76B1C;
    box-shadow: 0 4px 12px rgba(247,107,28,0.7), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}
.card-tile.orange:hover {
    box-shadow: 0 8px 18px rgba(247,107,28,0.4), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}

&#47;* Green Card *&#47;
.card-tile.green {
    background-color: #096e40;
    background-image: linear-gradient(0deg, #096e40 0%, #2AF598 100%);
    border-color: #096e40;
    box-shadow: 0 4px 12px rgba(9,110,64,0.7), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}
.card-tile.green:hover {
    box-shadow: 0 8px 18px rgba(9,110,64,0.4), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}
</code></pre>
<h3 id="adding-transitions">Adding transitions</h3>
<p>We can now see the actual cards visually and have the ability to interact with them, but there is a problem - they don&#8217;t animate.</p>
<p>Lucky we can target all elements we wish to animate with the <code>transition</code> property, like so:</p>
<pre><code>&#47;* Shared transitions *&#47;
.card-tile,
.card-tile .text-content {
    transition: .3s ease all;
}
</code></pre>
<p>Done and done.</p>
<h2 id="the-final-code">The final code</h2>
<p>To make things easier for reference, I have included all the <code>html</code> and <code>css</code> below. Please feel free to use these cards anywhere you like and change them as you see fit!</p>
<h3 id="html">HTML</h3>
<pre><code>&#60;div class="card-tiles-container"&#62;
    &#60;div class="card-tile blue"&#62;
        &#60;div class="text-content"&#62;
            &#60;h4&#62;Card Title&#60;&#47;h4&#62;
            &#60;p&#62;Inner card content text&#60;&#47;p&#62;
        &#60;&#47;div&#62;
    &#60;&#47;div&#62;
    &#60;div class="card-tile orange"&#62;
        &#60;div class="text-content"&#62;
            &#60;h4&#62;Card Title&#60;&#47;h4&#62;
            &#60;p&#62;Inner card content text&#60;&#47;p&#62;
        &#60;&#47;div&#62;
    &#60;&#47;div&#62;
    &#60;div class="card-tile green"&#62;
        &#60;div class="text-content"&#62;
            &#60;h4&#62;Card Title&#60;&#47;h4&#62;
            &#60;p&#62;Inner card content text&#60;&#47;p&#62;
        &#60;&#47;div&#62;
    &#60;&#47;div&#62;
&#60;&#47;div&#62;
</code></pre>
<h3 id="css">CSS</h3>
<pre><code>.card-tiles-container {
    display: flex;
    font-size: 14px;
    margin: 20px 0;
}
&#47;* Shared transitions *&#47;
.card-tile,
.card-tile .text-content {
    transition: .3s ease all;
}
&#47;* Default card tile styles *&#47;
.card-tile {
    border: 1px solid;
    border-radius: 10px;
    cursor: pointer;
    height: 150px;
    margin: 0 10px;
    overflow: hidden;
    position: relative;
    width: 33.33%;
}
&#47;* Blue Card *&#47;
.card-tile.blue {
    background-color: #0093E9;
    background-image: linear-gradient(0deg, #0093E9 0%, #80D0C7 100%);
    border-color: #0093E9;
    box-shadow: 0 4px 12px rgba(128,208,199,0.7),
                inset 0 2px 1px rgba(255,255,255,0.6);
}
.card-tile.blue:hover {
    box-shadow: 0 8px 18px rgba(128,208,199,0.4), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}
&#47;* Orange Card *&#47;
.card-tile.orange {
    background-color: #FAD961;
    background-image: linear-gradient(180deg, #FAD961 0%, #F76B1C 100%);
    border-color: #F76B1C;
    box-shadow: 0 4px 12px rgba(247,107,28,0.7), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}
.card-tile.orange:hover {
    box-shadow: 0 8px 18px rgba(247,107,28,0.4), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}
&#47;* Green Card *&#47;
.card-tile.green {
    background-color: #096e40;
    background-image: linear-gradient(0deg, #096e40 0%, #2AF598 100%);
    border-color: #096e40;
    box-shadow: 0 4px 12px rgba(9,110,64,0.7), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}
.card-tile.green:hover {
    box-shadow: 0 8px 18px rgba(9,110,64,0.4), 
                inset 0 2px 1px rgba(255,255,255,0.6);
}
&#47;* Card tile text content *&#47;
.card-tile .text-content {
    background: linear-gradient(rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.6) 100%);
    bottom: 10px;
    border: 1px solid rgba(0,0,0,0.4);
    border-radius: 5px;
    box-shadow: inset 0 1px 1px rgba(255,255,255,0.8), 
                0 2px 4px rgba(0,0,0,0.5);
    height: 65px;
    left: 10px;
    opacity: 0;
    padding: 10px;
    position: absolute;
    width: calc(100% - 20px);
    z-index: -1;
}
.card-tile .text-content h4,
.card-tile .text-content p {
    color: #fff;
    margin: 0;
    text-shadow: 1px 1px 1px rgba(0,0,0,0.6);
}
&#47;* All animations on hover *&#47;
.card-tile:hover {
    transform: scale(1.1);
}
.card-tile:hover .text-content {
    opacity: 1;
    z-index: 1;
}
@media(max-width: 600px) {
    .card-tiles-container {
        flex-direction: column;
    }
    .card-tile {
        margin: 0 0 10px 0;
        width: 100%;
    }
}
</code></pre>
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