.container {
position: relative;
width: 200px;
height: 200px;
margin: 50px auto;
}
.big-circle {
position: absolute;
top: 40%;
left: 50%;
transform: translate(-50%, -50%);
width: 100px;
height: 100px;
border-radius: 50%;
background-color: rgba(135, 206, 235, 0.55);
}
.small-circle {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 60px;
height: 60px;
border-radius: 50%;
background-color: rgba(135, 206, 235, 0.55);
}
.small-circle:nth-child(1) {
transform: translate(-50%, -80%) rotate(36deg) translate(0, 60px) rotate(-36deg);
}
.small-circle:nth-child(2) {
transform: translate(-50%, -80%) rotate(72deg) translate(0, 60px) rotate(-72deg);
}
.small-circle:nth-child(3) {
transform: translate(-50%, -80%) rotate(108deg) translate(0, 60px) rotate(-108deg);
}
.small-circle:nth-child(4) {
transform: translate(-50%, -80%) rotate(144deg) translate(0, 60px) rotate(-144deg);
}
.small-circle:nth-child(5) {
transform: translate(-50%, -80%) rotate(180deg) translate(0, 60px) rotate(-180deg);
}
.small-circle:nth-child(6) {
transform: translate(-50%, -80%) rotate(216deg) translate(0, 60px) rotate(-216deg);
}
.small-circle:nth-child(7) {
transform: translate(-50%, -80%) rotate(252deg) translate(0, 60px) rotate(-252deg);
}
.small-circle:nth-child(8) {
transform: translate(-50%, -80%) rotate(288deg) translate(0, 60px) rotate(-288deg);
}
.small-circle:nth-child(9) {
transform: translate(-50%, -80%) rotate(324deg) translate(0, 60px) rotate(-324deg);
}
.small-circle:nth-child(10) {
transform: translate(-50%, -80%) rotate(360deg) translate(0, 60px) rotate(-360deg);
}
.small-circle:nth-child(11) {
transform: translate(-50%, -80%) rotate(36deg) translate(0, 60px) rotate(-36deg);
}
<div class="container">
<div class="big-circle"></div>
<div class="small-circle"></div>
<div class="small-circle"></div>
<div class="small-circle"></div>
<div class="small-circle"></div>
<div class="small-circle"></div>
<div class="small-circle"></div>
<div class="small-circle"></div>
<div class="small-circle"></div>
<div class="small-circle"></div>
<div class="small-circle"></div>
</div>