body{
    background-image: url(fondo.jpg);
    background-repeat: no-repeat;  
    background-position: center center;
    height: 100%;
    background-attachment: fixed;
    background-size: cover;
}
.circulo{
    width: 300px;
    height: 300px;
    background-color: white;
    border-radius: 100%;
    margin:0 auto;
}
.circulo > .imagen{
    width: 100%;
    height: 100%;
    border-radius: 100%;
}
.nombre{
    font-family: Helvetica;
    text-align: center;
    color: white;
    font-size: 4;
}
.btn-c{
    width: 200px;
    font-family: Arial, Helvetica, sans-serif;
    border-radius:4px;
    color: #3287c0;
    margin: 25px 300px;
    padding: 18px 30px;
    background-color: white;
    color: #3287c0;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    display: block;
    margin-right: auto;
    margin-left: auto;
}
.btn-c:hover{
    background-color: white;
    border: 2px solid white;
    color: #3287c0;
    box-shadow: 0px 0px 20px #3287c0;
}
.btn-e{
    width: 200px;
    font-family: Arial, Helvetica, sans-serif;
    border-radius:4px;
    color: #3287c0;
    margin: 0px 300px;
    padding: 18px 30px;
    background-color: white;
    color: #3287c0;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    display: block;
    margin-right: auto;
    margin-left: auto;
}
.btn-e:hover{
    background-color: white;
    border: 2px solid white;
    color: #3287c0;
    box-shadow: 0px 0px 20px #3287c0;
}
.btn-w{
    width: 200px;
    font-family: Arial, Helvetica, sans-serif;
    border-radius:4px;
    color: #3287c0;
    margin: 25px 300px;
    padding: 18px 30px;
    background-color: #00bb2d;
    color: white;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    display: block;
    margin-right: auto;
    margin-left: auto;
}
.btn-w:hover{
    background-color: #00bb2d;
    border: 2px solid #00bb2d;
    color: white;
    box-shadow: 0px 0px 20px #000;
}
.btn-u{
    width: 200px;
    font-family: Arial, Helvetica, sans-serif;
    border-radius:4px;
    color: #3287c0;
    margin: 25px 300px;
    padding: 18px 30px;
    background-color: white;
    color: #3287c0;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    display: block;
    margin-right: auto;
    margin-left: auto;
}
.btn-u:hover{
    background-color: white;
    border: 2px solid white;
    color: #3287c0;
    box-shadow: 0px 0px 20px #3287c0;
}
.btn-s{
    width: 200px;
    font-family: Arial, Helvetica, sans-serif;
    color: #3287c0;
    margin: 25px 300px;
    padding: 18px 30px;
    background-color: white;
    color: #3287c0;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    display: block;
    margin-right: auto;
    margin-left: auto;
    border-radius:4px;
}
.btn-s:hover{
    background-color: white;
    border: 2px solid white;
    color: #3287c0;
    box-shadow: 0px 0px 20px #3287c0;
}
.contenedor{
    display: flex;
    justify-content: center;
}
.btn-f{
    width: 50px;
    height: 50px;
    background-color: white;
    border-radius: 100%;
    margin: 4px;
    border: none;
    justify-content: center;
}
.btn-f:hover{
    background-color: white;
    border: 2px solid transparent;
    color: #3287c0;
    box-shadow: 0px 0px 20px #3287c0;

}