Garagedoor open alarm no longer blinks

[yvonnehx1]

I hope someone can help me: I recently noticed that my garagedoor open alert no longer works: the block used to blink when the garagedoor was openen but now only shows a faint steady red color. The sensor works in Domoticz, no problem there. The status of the device in the block also changes accordingly, it's only the blinking that doesn't work. I've used the code from the Dashticz manual but will repeat it here:

In custom.js:

Spoiler: show

// Garagedoor open warning: see class warning in custom.css
function getStatus_273(block, afterupdate){
debugger;
var idx = block.idx;
var device = block.device;
if(device['Data']=='Open'){
block.addClass='warning';
}
else {
block.addClass='';
}
}

In custom.css:

Spoiler: show

/* Garagedoor open alert definition */
.warning {
background: rgba(199,44,44,0.3) !important;
background-clip: padding-box;
border: 7px solid rgba(255,255,255,0);
-webkit-animation: BLINK-ANIMATION 1s infinite;
-moz-animation: BLINK-ANIMATION 1s infinite;
-o-animation: BLINK-ANIMATION 1s infinite;
animation: BLINK-ANIMATION 1s infinite;
}

@-webkit-keyframes BLINK-ANIMATION {
0%, 49% {
background-color: rgba(199,44,44,0.3);
background-clip: padding-box;
border: 7px solid rgba(255,255,255,0);
}
50%, 100% {
background-color: rgba(199,44,44,0.7);
background-clip: padding-box;
border: 7px solid rgba(255,255,255,0);
}
}