*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    background-color: #E3516E;
    width: 100%;
    height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}
.a, .b, .c, .d{
    width: 300px;
    height: 300px;
}

.a{
    background-color: #51B5A9;
    align-self: end;
    justify-self: end;
    border-top-left-radius: 100%;
}

.b{
    align-self: end;
    background-color: #FADE8B;
    justify-self: start;
    border-top-right-radius: 100%;
}

.c{
    background-color: #F7F3D7;
    align-self: start;
    justify-self: end;
    border-bottom-left-radius: 100%;
}


```
```