#entity{
    border: 2px solid red;
    font-size: small;
    width:60px;
    height:20px;
    position:absolute;
    right:110px;
    top:156px;
    cursor:pointer;
    text-align: center;            
}

#property{
    background: white;
    border: 1px solid black;
    width:70px;
    height:20px;
    position:absolute;
    right:20px;
    top:156px;
    cursor:pointer;
    text-align: center;
    border-radius: 10px;
}

#link1{
    background: black;
    border: 1px solid black;
    width:60px;
    height:1px;
    position:absolute;
    right:110px;
    top:200px;
    cursor:pointer;
}

#link2{
    background: black;
    border: 1px solid black;
    width:70px;
    height:20px;
    position:absolute;
    right:20px;
    top:200px;
    cursor:pointer;
    clip-path: polygon(0% 0%, 55% 0%, 55% 90%, 100% 90%, 100% 100%, 45% 100%, 45% 10%, 0% 10%);
}

#relation{
    background: gray;
    font-size: small;
    border: 1px solid black;
    width:80px;
    height:20px;
    position:absolute;
    right:100px;
    top:250px;
    cursor:pointer;
    text-align: center;
    clip-path: polygon(0% 50%, 50% 0%, 100% 50%, 50% 100%);
}

#key{
    background: white;
    border: 1px solid black;
    width:70px;
    height:20px;
    position:absolute;
    right:20px;
    top:250px;
    cursor:pointer;
    text-align: center;
    text-decoration: underline;
    border-radius: 10px;
}