.pop_up{
position: absolute;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
z-index: 9999;
    background-color: rgba(101, 98, 98, 0.55);
display: none;
}
.pop_up .comp{
    background-color: white;
    border: 1px solid #ccc;
    padding: 20px;
    width: 50%;
    height: 70%;
    left: 50%;
    position: absolute;
    margin-left: -25%;
    top: 50%;
    margin-top: -25%;
}

.b{
    display: inline-block;
    padding: 10px 20px;
    font-size: 15px;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    outline: none;
    color: black;
    background-color: gold;
    border: none;
    border-radius: 15px;
    box-shadow: 0 9px #999;

}
.b:active {
    background-color: #d6ab0d;
    box-shadow: 0 5px #666;
    transform: translateY(4px);
  }