html,body {
    height: 100%;
}
 
body {
    font-size: 100%;
    line-height: 160%;
    font-family: Arial,Helvetica,sans-serif;
    text-align: center;
}

.text-danger {
  color: #b94a48;
} 

#container {
    margin: 0 auto;
    width: 100%;
    height: 100%;
    min-height: 100%;
    text-align: left;
}
 
body > #container {
    height: auto;
}

.blinking {
    -webkit-animation: 0.5s linear 0s alternate none infinite running blink;
    -moz-animation: 0.5s linear 0s alternate none infinite running blink;
    animation: 0.5s linear 0s alternate none infinite running blink;
}
@-webkit-keyframes blink {
    0% { opacity: 0; }
    19.9% { opacity: 0; }
    20% { opacity: 1; }
    100% { opacity: 1; }
}
@-moz-keyframes blink {
    0% { opacity: 0; }
    19.9% { opacity: 0; }
    20% { opacity: 1; }
    100% { opacity: 1; }
}
@keyframes blink {
    0% { opacity: 0; }
    19.9% { opacity: 0; }
    20% { opacity: 1; }
    100% { opacity: 1; }
}

.switch {
 -webkit-animation: switchtext 0.5s infinite alternate;
 -moz-animation: switchtext 0.5s infinite alternate;
 animation: switchtext 0.5s infinite alternate;
}
@-webkit-keyframes switchtext {
 from { opacity: 1.0; }
 to { opacity: 0; }
}
@-moz-keyframes switchtext {
 from { opacity: 1.0; }
 to { opacity: 0; }
}
@keyframes switchtext {
 from { opacity: 1.0; }
 to { opacity: 0; }
}