.calc{
  position: relative;
} 
.boxes{
    text-align: center;
    width: 318px;
    margin: 0 auto;
}
.boxes li{
    list-style: none;
    width: 100px;
    height: 100px;
    display: inline-block;
    -webkit-transition: all 100ms ease-out;
    -moz-transition: all 100ms ease-out;
    -o-transition: all 100ms ease-out;
    transition: all 100ms ease-out;
    outline: 3px solid #ccc;
    background-color: #e25583;
}
.boxes .green{
    background-color: #24a777;
}
.boxes .blue{
    background-color: #47a2da;
}
.boxes .roz{
    background-color: #e25583;
}
#play[disabled],
#now[disabled]{
    display: none;
}

@media all and (max-width: 580px){
    .boxes {
        width: 198px;
    }
    .boxes li{
        width: 60px;
        height: 60px;
    }  
}