div.tab:not(:target) div.content, div.tab:target div.show, div.tab div.hide {
    display: none;
}
 
div.tab:target div.content, div.tab:target div.hide {
    display: block;
}

.t2 {
    background-color: #00FF00;  
    background-image: url(../images/spoiler.png);
    border-radius: 25px;
    height: 25px;
    width: 250px;
    text-align: center;   
}

.t2_1 {
    background-color: yellow;
    background-image: url(../images/spoilerzu.png);
    border-radius: 25px;
    height: 25px;
    width: 250px;
    text-align: center;
}

.content img {
    height: 300px;
    width: 300px;
}