button {
    background-color: #4CAF50; /* Green */
    border: none;
    color: white;
    padding: 16px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    -webkit-transition-duration: 0.4s; /* Safari */
    transition-duration: 0.4s;
    cursor: pointer;
}

button1 {
    background-color: white; 
    color: black; 
    border: 2px solid #4CAF50;
}

button1:hover {
    background-color: #4CAF50;
    color: white;
}

button2 {
    background-color: white; 
    color: black; 
    border: 2px solid #008CBA;
}

button2:hover {
    background-color: #008CBA;
    color: white;
}

button3 {
    background-color: white; 
    color: black; 
    border: 2px solid #f44336;
}

button3:hover {
    background-color: #f44336;
    color: white;
}

button4 {
    background-color: white;
    color: black;
    border: 2px solid #e7e7e7;
}

button4:hover {background-color: #e7e7e7;}

button5 {
    background-color: white;
    color: black;
    border: 2px solid #555555;
}

button5:hover {
    background-color: #555555;
    color: white;
}

body{
    font-family:arial;
    font-size:15px;
    line-height:1.6em;
    background:#f4f4f4;
}

li{
    list-style:none;
}

a{
    text-decoration:none;
}

label{
    display:inline-block;
    width:180px;
}

input[type='text']{
    width:97%;
    padding:4px;
    border-radius:5px;
    border: 1px solid #ccc;
}

input[type='number']{
    width:50px;
    padding:4px;
    border-radius:5px;
    border: 1px solid #ccc;
}

#container{
    margin: 0 auto;
    overflow:auto;
    width:60%;
}

header {
    border-bottom:3px solid #f4f4f4 solid;
}

footer{
    border-top:3px #f4f4f4 solid;
    text-align:center;
    padding-top:5px;
}

main{
    padding-bottom:20px;
}

a.start{
    display:inline-block;
    color:#666;
    border:1px dotted #ccc;
    padding:6px 13px;
}

.current{
    padding:40px;
    background:#f4f4f4;
    border:#ccc dotted 1px;
     margin:20px 0 10px 0;
}

@media only screen and (max-width:1080px){
    .container{
	width:90%;
    }
}