#balse{
    height: 96vh;
    display: inline-block;
    vertical-align: bottom;
    position: absolute;
    bottom: 0;
    border-bottom:1px rgba(17, 17, 17, 0.041) solid;
    /* margin-left: -120px; */
}

#ufa, .scrolldown{
display: block;
background-size: 100px;
top: 0;
left: 0;
margin: 0 auto;
padding: 0;
width: 11.2em;
/* height: 98px; */
border: 0px solid;
background-position: center center;
background-color: transparent;
background-size: contain;
-webkit-background-size: contain;
-moz-background-size: contain;
-o-background-size: contain;
opacity: 1;
transform: rotate(0deg);
animation: blink-animation 1s infinite alternate;
}

@keyframes blink-animation {
  0% { opacity: 1; }
  100% { opacity: 0; }
}

#ufa{
  animation: blink-animation 1s infinite alternate;
}

@media (max-width: 1920px) {
  #ufa {
    width: 8em;  }  
  #balse{
      margin-left: -120px;
  }
}

@media (max-width: 1400px) {
    #balse{
        margin-left: -120px;
    }
}

@media (max-width: 768px) {
    #introducao-mobile,
    #ufa {
      animation: blink-animation 1s infinite alternate;
      width: 7.4em;
    }  
  }