.circle1{
    border: 1px solid black;
    height: 50px;
    width: 50px;
    background-color: red;
    border-radius: 50px;
}
.circle2{
    border: 1px solid black;
    height: 50px;
    width: 50px;
    background-color: yellow;
    border-radius: 50px;
}
.circle3{
    border: 1px solid black;
    height: 50px;
    width: 50px;
    background-color: black;
    border-radius: 50px;
}
.circle4{
    border: 1px solid black;
    height: 50px;
    width: 50px;
    background-color: green;
    border-radius: 50px;
}
.border-img{
    margin-top: 20px;
    border: 4px solid red;
    width: 450px;
    height: 180px;
    border-radius: 0px 40px;
}