body {
    background-color: lightblue;
    width: 100%
  }

hr{
    border: 1px solid grey;
    margin-bottom: 25px;
}

nav{
    background-color: skyblue;
}

nav div a img{
    padding-top:0px;
    margin:3px 3px;
}

nav div span{
    font-size: larger;
    padding:10px;
    margin-left:10px;
    color: white;
}

.center_piece{
    position: relative;
    width:100%;
    top:10px
}

.center{
    position: absolute;
    align-items: center;
}
.center_img{
    width: 250px;
    height: 250px;
    border-radius: 20%;
}
button {
    background-color: #4CAF50;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    cursor: pointer;
    width: 100%;
    opacity: 0.9;
    transition: all 0.5s;
    font: verdana;
}
.leftbtn {
    padding: 14px 20px;
    display: inline-block;
    background-color: #f08080;
}
.rightbtn {
    padding: 14px 20px;
    background-color: #4CAF50;
}
.leftbtn, .rightbtn {
    float: left;
    width: 50%;
}

.leftbtn:hover{
    background-color: #f44336;
    opacity: 1;
}

.rightbtn:hover{
    background-color: #006400;
    opacity: 1;
}

button:hover{
    background-color: #006400;
    opacity: 1;
}


footer{
    position: fixed;
    bottom:0px;
    width: 100%;
    background-color: black;
    color: white;
}