Test-0

HTML

<div class="p1">
    <div class="p2">
            This is Sparta!
    </div>
</div>

CSS

.p1{
    width:150px;
    height:150px;
    border-radius:100%;
    overflow:hidden;
    background:green;
}
.p2{
    width:400px;
    height:400px;
    background:red;
    border-radius:100%;
}