问制作背景幻灯片动画

EN

.RadioButton .btn:first-child::before {
 right: 0;
 transition: .3s all ease;
}

.RadioButton .btn:nth-child(2)::before {
 transition: .3s all ease;
}

.RadioButton .btn:last-child::before {
  left: 0;
  transition: .3s all ease;
}

$('.RadioButton').each(function(){
	$(this).find('.btn').each(function(){
		$(this).click(function(){
			$(this).parent().find('.btn').removeClass('btn-active');
			$(this).addClass('btn-active');
		});
	});
});

body {
direction: rtl;
}

.RadioButton .btn {
    width: 33%;
    float: left;
    margin: 0;
    box-sizing: border-box;
    position: relative;
    font-size: 11px;
    min-height: 30px!important;
    line-height: 30px;
    border-radius: 5px;
    overflow: hidden;
    cursor: pointer;
    text-align: center;
}

.btn-default {
    border: 1px solid gray;
    color: gray;
}

.btn-group>.btn:first-child {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.btn-group>.btn:nth-child(2) {
    border-radius: 0;
}

.btn-group>.btn:last-child {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.RadioButton .btn::before {
    content: "";
    height: 100%;
    width: 0%;
    background: gray;
    position: absolute;
    top: 0;
    transition: .3s all ease;
    z-index: -1;
}

.btn-active::before {
    width: 100%!important;
}

.RadioButton .btn:nth-child(2)::before {
 right: 0;
 transition: .3s all ease;
}

.RadioButton .btn:last-child::before {
  left: 0;
  transition: .3s all ease;
}

.btn-active:first-child::before {
 left: 0;
 transition: .3s all ease;
}

.btn-active:last-child::before {
  left: 0;
  transition: .3s all ease;
}

.btn.btn-default.btn-active {
    color: white;
}

.btn-group {
    clear: both;
    margin-top: 10px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="RadioButton btn-group" id="searchType">
	<a class="btn btn-default" data-val="0">Used</a>
	<a class="btn btn-default" data-val="1">New</a>
	<a class="btn btn-default btn-active" data-val="2">All</a>
</div>