h1 {
    text-align: center;
    font-family: Tahoma, Arial, sans-serif;
    color: #06D85F;
    margin: 10px;
}

.box {
    width: 700px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.2);
    padding: 35px;
    border: 2px solid #fff;
    border-radius: 20px/50px;
    background-clip: padding-box;
    text-align: center;
}

.overlay {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    transition: opacity 500ms;
    visibility: hidden;
    opacity: 0;
    z-index: 2;
}

.overlay:target {
    visibility: visible;
    opacity: 1;
}

.popup {
    position: relative;
    top: 20px;
    background-image: linear-gradient(rgba(0, 0, 0, 0.938), rgba(0, 0, 0, 0.616));
    margin: auto;
    max-width: 955px;
    height: 90vh;
    overflow-y: scroll;
    margin-bottom: 10px;
    z-index: 2;
}

.btn {
    position: relative;
    left: 20%;
    border: 1.5px solid;
    padding: 10px;
    box-shadow: 6px 9px 9px 20px yellow;
}

.popup h2 {
    margin-top: 0;
    color: #333;
    font-family: Tahoma, Arial, sans-serif;
}

.popup .close {
    position: absolute;
    top: 20px;
    right: 30px;
    transition: all 200ms;
    font-size: 30px;
    font-weight: bold;
    text-decoration: none;
    color: rgb(0, 255, 64);
}

.popup .close:hover {
    color: hsl(0, 95%, 48%);
}

.popup .content {
    max-height: 20%;
    overflow: auto;
    z-index: 2;
}