.inpt {
    height: 2.291vw;
    line-height: 2.291vw;
    font-size: .833vw;
    padding: 0 2.604vw 0 1.041vw;}
}
/****/
.lubo_btn{ position: absolute; width: 100%; top: 45%; z-index:4;}

.left_btn, .right_btn{ width: 40px; height: 40px; background: rgb(88 36 89 / 60%);opacity: 0.8;filter:alpha(opacity=80); cursor: pointer; color: #fff; line-height: 36px; font-size: 29px; text-align: center;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none; text-align:center;}

.left_btn{ float: left; margin-left:10px;border-radius: 15px;}

.right_btn{ float: right; margin-right:10px;border-radius:15px;}

.regular.slider {
    position: relative;}
.lubo_btn {
    position: absolute;
    top: 50%;
    width: 100%;
    display:none;}
.regular.slider:hover .lubo_btn {
display: block;}