html{
	margin:0;
	padding:0;
	background: url("marvel-comics-retro-background_a-G-13757638-13198931.jpg") no-repeat center center fixed;
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size:cover;
	background-size: cover;
}

body{
	margin: 0;
	padding:0;
	font-family: 'Bangers', cursive;
	background: none;

}


.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {`
    visibility: hidden;
    width: 120px;
    background-color: black;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px 0;
    
    /* Position the tooltip */
    position: absolute;
    z-index: 1;
    bottom: 100%;
    left: 50%;
    margin-left: -60px;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
}

<center>
#con {
  width: 500px;
  height: 200px;
}
#box1 {
  float: left;
  font-size: 25px;
  color:black;
  width: 350px;
  height: 350px;
  background-color:tomato;
  border: 10px solid red;
  border-style: outset;
  margin:20px;
  
}
/* The CSS below is added to hopefully achieve the effect you're looking for. */

#text1 {
  display: none;
}
#box1:hover #text1 {
  display: block;

}
#box1:hover #image {
  display: none;
  
}
#login{
  float:right;
  margin-right: -95px;
  margin-left: 20px;
  margin-top:70px;
  font-family: 'Pacifico', cursive;

</center>

/* Dropdown Button */
/*.round-button {
	width: 10%;
	height: 0;
	padding-bottom: 10%;
	border-radius: 50%;
	 border: 5px solid #f5f5f5; 
    overflow: hidden;
    background: #F92121;
    box-shadow: 0 0 3px gray;

}

/* Dropdown button on hover & focus */
/*.round-button: hover, .round-button: focus{
    background-color: #C61616;
}
}

.round-button img{
	display: block;
	width: 150%;
	padding: 12%;
	height: auto;
	
}

}
/* The container <div> - needed to position the dropdown content */
/*.dropdown {
    position: relative;
    display: inline-block;
}

/* Dropdown Content (Hidden by Default) */
/*.dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
}

/* Links inside the dropdown */
/*.dropdown-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
}

/* Change color of dropdown links on hover */
/*.dropdown-content a:hover {background-color: #f1f1f1}

/* Show the dropdown menu (use JS to add this class to the .dropdown-content container when the user clicks on the dropdown button) */
/*.show {display:block;}