.banner-section{
    background:url("../imgs/artigo.gif"); 
    opacity: .6;
    position: absolute;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    z-index: -1; 
    background-size:cover; 
    background-position:0;}
.post-title-block{padding:100px 0;}
.post-title-block h1 {color: #fff; font-size: 85px; font-weight: bold; text-transform: capitalize;}
.post-title-block li{font-size:20px; color: #fff;}
.image-block{float:left; width:100%; margin-bottom:10px;}
.blog{
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 10px;
    margin-top: 10px;
}
section{width:100%; float:left;}

h3{
    text-align: center

}

/*only for centering on the page*/
.btn {
    margin: 0 auto;
    display: block;
  }
  /*removes ugly bootstrap border button*/
  *.btn:active,
  .btn:focus,
  .btn:active:focus,
  .btn:focus {
    outline: none !important;
  }
  .btn:active {
    box-shadow: none;
  }
  
  .btn:active{
    background-color:white;
  }