.w3-animate-fading{animation:fading 10s infinite}@keyframes fading{0%{opacity:0}50%{opacity:1}100%{opacity:0}}
.w3-content,.w3-auto{ padding-top:100px; }.w3-content{max-width:1000px}.w3-auto{max-width:1140px}
.w3-section,.w3-code{margin-top:16px!important;margin-bottom:16px!important}