:root {

	--bg: grey;
	--fg: white;
	
	--bubble-bg: #00000020;
	--bubble-border: white;
}

body{
	background-color: var(--bg);
}
.photos {

    height: 500px ; width: 600px;
	overflow: hidden;
	margin: auto;
	
	border: 10px solid salmon;
	
        
}

header{
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-around;
    cursor: move;
    transition-duration: 500ms;
}

header:hover {

    background-color: transparent;

}
  

.theme1 {

    color: black;
    background-color: aliceblue;
    padding: -10px 50px;
    font-family: monospace;
    font-size: 20px;

}

footer {
    position: sticky;
    bottom: 0;
    display: flex;
    justify-content: space-between;
    cursor: move;
    transition-duration: 500ms;
}

footer:hover{

    background-color: transparent;

}