.center-block {
  display: block;
  margin-left: auto;
  margin-right: auto;
}
.text-align-center {
  text-align: center;
}
.text-align-right {
  text-align: right;
}
.strong {
  font-weight: bold;
}

/*
.clearfix() {
  &:before,
  &:after {
    content: " ";
    display: table;
  }
  &:after {
    clear: both;
  }
}
*/

.show {
  display: block !important;
}
.hidden {
  display: none !important;
}
.invisible {
  visibility: hidden;
}

.img-responsive {
  display: inline-block!important;
  max-width: 100%;
  height: auto;
}
.img-adaptive {
  display: block;
  width: 100%;
  height: auto;
}
.img-circle {
  border-radius: 50%;
}