#slide { 
width: 940px; 
overflow: hidden; 
height: 450px;
top:100px; 
margin-left: auto;
margin-right: auto; 
box-shadow: 0 0 8px #000; 
position: relative; 
} 

#slide img { 
position: relative; 
z-index: 1;
margin-left: auto;
margin-right: auto;
width: 940px;
height: 500px;
display: none; 
left: 0; 
} 

#slide p { 
z-index:2; 
position: absolute; 
bottom: 0; 
left: 0; 
width: 100%; 
padding: 10px; 
font-family: Arial; 
font-size: 14px; 
background: rgba(0,0,0,0.5); 
color: #fff;
}