@media (min-width:600px)
{
    #body-build {
    display: flex;
    flex-flow: row;
    flex-wrap: wrap;
    justify-content: center;
}

#cardio{
    display: flex;
    flex-flow: row;
    flex-wrap: wrap;
    justify-content: center;
}
#football{
    display: flex;
    flex-flow: row;
    flex-wrap: wrap;
    justify-content: center;
}
.card {
margin-left: 50 px!important ;
margin-right : 50px!important ;
}
}
@media (max-width:600px)
{
    .card {
        width: 90vh;
    }  
}


      .card {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.3);
  max-width: 270px;
  margin-top: 25 px;
  margin-bottom: 25px;
  margin:auto;
  text-align: center;
  font-family: arial;
  
}

.price {
  color: grey;
  font-size: 22px;
}

.card button {
  border: none;
  outline: 0;
  padding: 12px;
  color: white;
  background-color: #000;
  text-align: center;
  cursor: pointer;
  width: 100%;
  font-size: 18px;
}

.card button:hover {
  opacity: 0.7;
}