.site-header{
    background-image: linear-gradient(rgba(52,53,54,.8) 0 100%);
}
#main{
    text-decoration: none;
}
.container{
  padding-top: 120px;
}
#aU, #Center, #aZ, #AC{
 color: rgba(113, 113, 113);
 /* color: rgba(0,0,0,0.3) */
}