body{
    font-size: 18px;
    margin: 0;
    background-color: #f8fbff;
    text-align: center;
}
.txt {
    display: inline-block;
    text-align: left;
}
html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
}
h1{
    display:block;
    margin: 0;
    text-align: center;
    background-color: #c9ffff;
}
h2{
    display:inline-block;
    font-size: 1.5em;
    font-weight: bold;
    padding-top: .5em;
    /*padding-bottom: .5em;*/
    /*margin-bottom: 2em;*/
    /*border-bottom: solid 3px #111111;*//* ?? */
    border-bottom: solid 3px;
    border-image: linear-gradient(to right, #000000 0%, #ffffff 100%);
    border-image-slice: 1;
}
h3{
    display:inline-block;
    font-size: 1.5em;
    font-weight: bold;
    padding-top: .5em;
    padding-bottom: .5em;
    /*margin-bottom: 2em;*/
    border-bottom: solid 3px;
    border-image: linear-gradient(to right, #00ffff 0%, #d8f9ff 100%);
    border-image-slice: 1;
}
footer{
    margin: 0;
    padding: 0;
    text-align:center;
    background-color: rgb(111, 228, 33);
}
div{
    margin-top: 0;
    margin-left: 10%;
    margin-right: 10%;
}
li{
    margin-left: 0;
    white-space:nowrap;
}
ul{
    white-space:nowrap;
}

.intext{
    margin-top: 10%;
    font-size: 150%;
}


@keyframes example4{
    100% { background-position: 200%; }
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
  }
.wrapper {
    flex: 1;
    padding: 20px; 
    box-sizing: border-box;
}
  
footer {
    height: 60px;
    background-color: rgb(111, 228, 33);
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
  }