html,
body {
  height: 100%;
  background-color: white;
  font-size: 16px;
}

@media (min-width: 168px) {
  html {
    font-size: 16px;
  }
}

.container {
  max-width: 960px;
}


.pwybrana {
  background-color: #428bca;
}

.lspacing-1 {
  letter-spacing: 3px;
}
.lspacing-2 {
  letter-spacing: 6px;
}
.lspacing-3 {
  letter-spacing: 9px;
}
.lspacing-4 {
  letter-spacing: 12px;
}
.lspacing-5 {
  letter-spacing: 15px;
}

.x-radius {
  border-radius: 10px 10px 0px 0px;
}


.box-shadow { box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .05); }