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.tooltip5{
    position: relative;
    cursor: pointer;
    display:  inline-block;
}
.tooltip5 img{
    width: 20px;
}
.description5 {
    display: none;
    position: absolute;
    padding: 10px;
    font-size: 12px;
    line-height: 1.6em;
    color: #fff;
    border-radius: 5px;
    background: #000;
    width: 100px;
}
 
.description5:before {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    border: 15px solid transparent;
    border-top: 15px solid #000;
    margin-left: -15px;
}
.tooltip5:hover .description5{
    display: inline-block;
    top: -75px;
    left: -50px;
}




figure.hover-parent:hover .hover-mask {
　opacity: 1;
}

figure.hover-parent {
　width: 400px;
　height: 250px;
　position: relative;
　margin-bottom: 30px;
　overflow: hidden;
}
figcaption.hover-mask {
　width: 400px;
　height: 250px;
　position: absolute;
　top: 0;
　bottom: 0;
　left: 0;
　right: 0;
　background: rgba(0,0,0,0.5);
　opacity: 0;
　color: #fff;
　display: flex;
　align-items: center;
　text-align: center;
　padding: 30px;
}