/* Spolecne */
html {height: height: calc(100vh) !important}
body{font-family:Arial!important;font-size:1rem!important;color:#000!important;overflow-x: hidden;height: calc(100vh) !important}
h1 {text-align: center;font-size: 1.8em !important;text-decoration: underline;margin-bottom: 2rem !important}
.vheight-100 {height: calc(100vh) !important}

 
/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {  
  .container, .container-lg, .container-md, .container-sm, .container-xl {
  max-width: 800px !important;  
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (max-width: 1200px) {  
  .vheight-100 {height: calc(100vh) !important}
}