[css3]CSS3タブアニメーションの背景切り替えの動的効果例

<style type="text/css">
.slide-tabs { display:flex; position:relative; border:1px solid #3d3d3d; border-radius:10px; width:150px; overflow:hidden; background:# 1c1c1c; }
.slide-tabs * { z-index:2; }
.slide-tabs input[type=radio] { display:none; }
.slide-tabs .tab { display:flex; align-items:center; justify-content:center; border-radius:9px; height:18px; font-size:12px; color:#fff; cursor:pointer; }
.slide-tabs .glider { display:flex; position:absolute; border-radius:9px; height:18px; background:#3da35a; z-index:1; transition:0.25s ease- out; } /* lower z-index */

.slide-tabs input[type=radio]:checked + label { color:#fff; } /* modify current item color on demand */
.slide-tabs input[type=radio]:nth-of-type(1):checked ~ .glider { transform:translateX(0%); }
.slide-tabs input[type=radio]:nth-of-type(2):checked ~ .glider { transform:translateX(100%); }
.slide-tabs input[type=radio]:nth-of-type(3):checked ~ .glider { transform:translateX(200%); }

.slide-tabs.tabs-3x .tab,
.slide-tabs.tabs-3x .glider { width:50px; }
</style>

<div class="slide-tabs tabs-3x">
    <input type="radio" id="radio-1" value="1" name="tabs" checked="checked">
    <label class="tab" for="radio-1"> day</label>
    <input type="radio" id="radio-2" value="2" name="tabs">
    <label class="tab" for="radio-2">week</label>
    <input type="radio" id="radio-3" value="3" name="tabs">
    <label class="tab" for="radio-3"> month</label>
    <span class="glider"></span>
</div>