index.css

body {
    margin: 0;
}
.welcome {
    background-color: #DBE9EE;
    padding: 40px;
    left: 0;
    top: 80px;
    text-align: center;
    line-height: 40px;
    color: #eeeeee;
}

h1 {
    color: #466995;
    font-family: 'Oswald', sans-serif;
    font-size: 32px;
    font-weight: 300;
    text-transform: uppercase;
}

p {
    color: #333;
    font-size: 18px;
    font-family: 'Varela Round', sans-serif;
}

h4 {
    text-align: center;
    color: #466995;
    font-family: 'Oswald', sans-serif;
    font-size: 25px;
    font-weight: 300;
    text-transform: uppercase
}

.about {
    color: #333;
    font-family: 'Varela Round', sans-serif;
    font-size: 18px;
    font-weight: 100;
    text-align: center;
    text-decoration: none;
}

.about:hover {
    text-decoration: underline;
}


.button {
    background-color: #0c060c;
    color: #f8f3e5;
    border-radius: 100%;
    height: 180px;
    width: 180px;
    line-height: 15px;
    vertical-align: middle;
    box-sizing: border-box;
    padding: 45px;
}

.first {
    border-radius: 100%;
    background-color: #0c060c;
    padding: 10px;
}

.second {
    border-radius: 100%;
    background-color: #f8f3e5;
    padding: 3px;
}

.main {
    display: inline-block;
}