.logo{
  position:relative!important;
  display:inline-block!important;
}

.logo::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-10px;
  width:82%;
  height:2px;
  transform:translateX(-50%) scaleX(.55);
  transform-origin:center;
  border-radius:999px;
  background:linear-gradient(90deg,transparent,#2fffe6,transparent);
  box-shadow:0 0 14px rgba(47,255,230,.75);
  animation:vexonLogoLineBreath 4.5s ease-in-out infinite;
}

@keyframes vexonLogoLineBreath{
  0%{
    transform:translateX(-50%) scaleX(.55);
    opacity:.35;
  }
  50%{
    transform:translateX(-50%) scaleX(1);
    opacity:1;
  }
  100%{
    transform:translateX(-50%) scaleX(.55);
    opacity:.35;
  }
}