html {
    box-sizing: border-box;
    height: 100%;
}  
  
*, 
*:before, 
*:after {
    box-sizing: inherit;
}  
  
body {
    min-height: 50%;
    background-color: black;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 16px;
    font-family: "Courier New";
}

.header-title-container {
    display: flex;
    justify-content: center;
}
  

.header-toolbar {
    padding-left: 0;
    list-style-type: none;
}
  
.header-toolbar li {
    display: inline;
    margin: 20px;
}
  
.header-btn {
    text-transform: uppercase;
    text-decoration: none;
    color: white;
}
  


.header-btn:hover {
    text-decoration: underline;
}
  
  
.vhs {
    text-transform: uppercase;
    position: relative;
    mix-blend-mode: screen;
    color: transparent;
    text-shadow: 0 0 .125rem rgba(0,255,0,1);
    animation: jitter 5s infinite
}
  
.vhs::before, .vhs::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    mix-blend-mode: screen;
    animation: glitch 5s infinite alternate;
}

.vhs::before {
    text-shadow: 0 0 .125rem rgba(255,0,0,1);
}

.vhs::after {
    text-shadow: 0 0 .125rem rgba(0,0,255,1);
    animation-delay: 5s;
}

.center-text {
    margin: 0 auto;
}
  

    
@keyframes glitch {
    0% { transform: rotate(0deg) translate(.11rem) rotate(0deg) }    
    100% { transform: rotate(360deg) translate(.11rem)  rotate(-360deg) }
    
}
  
    
@keyframes jitter {
    0% { transform: translateX(0) }
    50% { transform: translateX(0) }    
    50.1% { transform: translateX(.1em) skew(40deg) }  
    50.2% { transform: translateX(-.2em) skew(-40deg) }
    50.3% { transform: translateX(0) }    
    100% { transform: translateX(0) }
    
 }