.rounded_button {
padding: 1.2rem 2.5rem;
font-size: 1rem;
background: #207ef9;
color: #fff;
border-radius: 40px;
border: 0;
letter-spacing: 1px;
cursor: pointer;
outline: 0;
}
.rounded_button:hover {
opacity: .9;
}Using the above code you can create a simple rounded box styles button in CSS. We use 'border-radius' property to make it rounded.