.hi-slide{
    position:relative;
    width:970px;
    height:292px;
    margin:50px auto;
}

.hi-slide .hi-prev, 
.hi-slide .hi-next{
    position:absolute;
    top:50%;
    width:40px;
    height:40px;
    margin-top:-20px;
    border-radius:50px;
    line-height:40px;
    text-align:center;
    cursor:pointer;
    background-color: white;
    color:black;
    font-size:20px;
    font-weight: bold;
    transition: all 0.7s;
}

.hi-slide .hi-prev:hover, 
.hi-slide .hi-next:hover{
    opacity: 1;
    background-color: grey;
}

.hi-slide .hi-prev{
    left:-70px;
}

.hi-slide .hi-prev::before{
    content:'<';
}

.hi-slide .hi-next{
    right:-70px;
}

.hi-slide .hi-next::before{
    content:'>';
}

.hi-slide ul {
    list-style:none;
    position:relative;
    width:754px;
    height:292px;
    margin:0;
    padding:0;
}

.hi-slide ul li {
    overflow: hidden;
    position: absolute;
    z-index: 0;
    left:377px;
    top:147px;
    width: 0;
    height: 0;
    margin: 0;
    padding: 0;
    border: 1px solid black;
    background-color: white;
    cursor: pointer;
}

.hi-slide ul li a {
    width: 100%;
    height: 100%;
    background-position: center;
}