img {
    width: 100px;
}

.main {
    width: 100%;
    margin: auto;
}

* {
    padding: 0;
    margin: 0;
}

.btn {
    padding: 9px 18px;
    background: #40AFFE;
    color: #FFFFFF;
    border-radius: 5px;
}

.upimg {
    position: relative;
    width: 100px;
    height: 100px;
    border-radius: 5px;
    border: dashed #999999;
    background: url(img/addimg.svg) no-repeat;
    background-position: 33px;
}

.upimg input {
    position: absolute;
    width: 100px;
    height: 100px;
    opacity: 0;
}

#showui {
    display: flex;
    justify-content: flex-start;
}

#showui li {
    width: 100px;
    height: 100px;
    position: relative;
    overflow: hidden;
    display: inline-block;
    margin-right: 5px;
}

#showui li img.showimg {
    position: absolute;
    text-align: center;
    /*top: 50%;*/
    /*left: 50%;*/
    /*transform: translate(-50%, -50%);*/
    z-index: 6;
}

.showdiv {
    position: absolute;
    z-index: 9;
    bottom: 0;
    width: calc(100% - 10px);
    padding: 5px;
    display: flex;
    justify-content: space-around;
    background: rgba(0, 0, 0, .6);
}

.showdiv img {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

#showui li:first-child img.left {
    opacity: .6;
    cursor: no-drop;
}

#showui li:last-child img.right {
    opacity: .6;
    cursor: no-drop;
}

.oneright {
    opacity: .6;
    cursor: no-drop !important;
}