#tswcssbuttons {
  padding: 0px;
  width: 140px;
  text-align: center;
  height: 34px;
  line-height: 1.9em;
}
#tswcssbuttons ul {
  padding: 0;
  margin-right: 0;
  margin-left: 0;
  list-style-type: none;
  list-style-image: none;
  list-style-position: outside;
  text-align: center;
  height: 34px;
  line-height: 1.9em;
}
#tswcssbuttons li {
  padding: 0;
  margin-right: 0;
  margin-bottom: 0;
  margin-left: 0;
  display: block;
  list-style-type: none;
  list-style-image: none;
  list-style-position: outside;
  font-family: Arial;
  font-style: bold;
  background-position:  center center;
  text-align: center;
  background-repeat: no-repeat;
  height: 34px;
  line-height: 1.9em;
  background-image: url(http://www.hexapod-kit.com/images/bouton-eau-actif.jpeg);
  color: black; 
}
#tswcssbuttons li a {
  text-decoration: none;
  display: block;
  padding-right: 0;
  padding-left: 0;
  background-image: url(http://www.hexapod-kit.com/images/bouton-eau.jpeg);
  background-position:  center center;
  width: 140px;
  text-align: center;
  background-repeat: no-repeat;
  height: 34px;
  color: black;
  line-height: 1.9em;
}
#tswcssbuttons li a:hover {
  background-image: url(http://www.hexapod-kit.com/images/bouton-eau-actif.jpeg);
  background-position:  center center;
  text-align: center;
  background-repeat: no-repeat;
  height: 34px;
  line-height: 1.9em;
  color: black;
}
#tswcssbuttons li b {
  text-decoration: none;
  display: block;
  padding-right: 0;
  padding-left: 0;
  background-image: url(http://www.hexapod-kit.com/images/bouton-eau-actif.jpeg);
  background-position:  center center;
  width: 140px;
  text-align: center;
  background-repeat: no-repeat;
  height: 34px;
  color: black;
  line-height: 1.9em;
}