span {
float:left;
width:50px;
height:50px;
text-align:center;
line-height:50px;
color:white;
margin:5px;
border-radius:50%;
}
.red {
background-color:red;
}
.blue {
background-color:blue;
}
button {
float:left;
padding:0px 10px;
height:35px;
margin-top:10px;
border:none;
border-radius:7%;
outline:none;
font-weight:550;
background:yellow;
}