body{

font-family:Arial,sans-serif;

background:#f4f4f4;

margin:20px;

text-align:center;

}



h1{

color:#333;

}



.pdf-box{

width:100%;

height:800px;

background:white;

}



#pdfViewer{

width:100%;

height:100%;

border:none;

}



button{

padding:10px 20px;

margin:10px;

border:none;

border-radius:8px;

background:#222;

color:white;

cursor:pointer;

}



button:hover{

opacity:0.8;

}



.actions{

font-size:20px;

margin:20px;

}



textarea{

width:90%;

height:120px;

padding:10px;

font-size:16px;

}



.comment{

background:white;

margin:10px;

padding:15px;

border-radius:10px;

text-align:left;

box-shadow:0 0 5px #ccc;

}



.time{

font-size:12px;

color:#777;

}