* {
    box-sizing: border-box;
}

body{
    font-family: Arial;
    margin: auto;
    background: #eae5d5 !important;
}
body h1{
  font-size: 2.5rem;
    position: absolute;
    top: 25px;
    color: #b87333;
    font-family: 'Source Serif Pro', serif;
    left: 50%;
    transform: translate(-50%,0);
}

.btn1{
  background: #00000078;
  position: absolute;
  top: 3%;
  left: 2%;
  z-index: 9999999;
  position: fixed;
 border: 2px solid #fff;
  text-align: center;

}
.btn1 a{
    color: #fff;
    display: block;
    font-size: 15px;
    letter-spacing: 2px;
    padding: 10px 40px;
      transition: all .5s;
}
.btn1 a:hover{
  text-decoration: none;
  color: #fff;
  background-color: #000;
}

#gallery{
  width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}
.poster-main{
      position: relative;
      margin:30px auto;
      max-width:1000px;
    }
  ul.poster-list{
        border: 8px solid;
    position: absolute;
    overflow: hidden;
  }
    .poster-main .poster-list .poster-item{
      position: absolute;
      left: 0;
      top: 0;
    }
    .poster-main .poster-btn{
      position: absolute;
      top: 0;
      cursor: pointer;
    }
    .poster-main .poster-prev-btn{
      left: 0;
      background: url("../img/btn_l.png") no-repeat center center;
    }
    .poster-main .poster-next-btn{
      right: 0;
      background: url("../img/btn_r.png") no-repeat center center;
    }