.acara-01, .acara-02, .acara-03, 
.acara-04, .acara-05, .acara-06 {
  position: relative;
  z-index: 1;
}

.acara-01:before {
  content: " ";
  position: absolute;
  top: 0; 
  left: 0;
  width: 100%; 
  height: 100%;  
  /** 
  opacity: .58;  
  background: #000000 url("../images/acara/acara-01.jpg");
  **/
  z-index: -1;
  background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url("../images/acara/acara-01.jpg");
  
  background-image {
  background-position: 50% 50%;
  border-radius:20px;
  border:5px solid #FFF000;
  box-shadow: rgba(0, 0, 0, 0.3) 0px 19px 38px, rgba(0, 0, 0, 0.22) 0px 15px 12px;
}

.acara-02:before {
  content: " ";
  position: absolute;
  top: 0; 
  left: 0;
  width: 100%; 
  height: 100%;  
  /** 
  opacity: .58; 
  background: #000 url("../images/acara/acara-02.jpg");
  **/
  z-index: -1;
  background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url("../images/acara/acara-02.jpg");
  background-position: 50% 50%;
  border-radius:20px;
  border:5px solid #FFF000;
  box-shadow: rgba(0, 0, 0, 0.3) 0px 19px 38px, rgba(0, 0, 0, 0.22) 0px 15px 12px;
}

.acara-03:before {
  content: " ";
  position: absolute;
  top: 0; 
  left: 0;
  width: 100%; 
  height: 100%;  
  
  z-index: -1;
  background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url("../images/acara/acara-03.jpg");
  /** 
  opacity: .58; 
  background: #000 url("../images/acara/acara-03.jpg");
  **/
  background-position: 50% 50%;
  border-radius:20px;
  border:5px solid #FFF000;
  box-shadow: rgba(0, 0, 0, 0.3) 0px 19px 38px, rgba(0, 0, 0, 0.22) 0px 15px 12px;
}

.acara-04:before {
  content: " ";
  position: absolute;
  top: 0; 
  left: 0;
  width: 100%; 
  height: 100%;  
  z-index: -1;
  /**
  opacity: .58; 
  background: #000 url("../images/acara/acara-04.jpg");
  **/
  background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url("../images/acara/acara-04.jpg");
  background-position: 50% 50%;
  border-radius:20px;
  border:5px solid #FFF000;
  box-shadow: rgba(0, 0, 0, 0.3) 0px 19px 38px, rgba(0, 0, 0, 0.22) 0px 15px 12px;
}

.acara-05:before {
  content: " ";
  position: absolute;
  top: 0; 
  left: 0;
  width: 100%; 
  height: 100%;     
  z-index: -1;
  /** 
  opacity: .58;
  background: #000 url("../images/acara/acara-05.jpg");
  **/
  background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url("../images/acara/acara-05.jpg");
  background-position: 50% 50%;
  border-radius:20px;
  border:5px solid #FFF000;
  box-shadow: rgba(0, 0, 0, 0.3) 0px 19px 38px, rgba(0, 0, 0, 0.22) 0px 15px 12px;
}

.acara-06:before {
  content: " ";
  position: absolute;
  top: 0; 
  left: 0;
  width: 100%; 
  height: 100%;    
  z-index: -1;
  /** 
  opacity: .58; 
  background: #000 url("../images/acara/acara-06.jpg");
  **/
  background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url("../images/acara/acara-06.jpg");
  background-position: 50% 50%;
  border-radius:20px;
  border:5px solid #FFF000;
  box-shadow: rgba(0, 0, 0, 0.3) 0px 19px 38px, rgba(0, 0, 0, 0.22) 0px 15px 12px;
}