styles.css

@import url('https://fonts.googleapis.com/css?family=Ubuntu:300&display=swap');

*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: 'Ubuntu';
    
}
body{
   background-color: /*#DEF9E1*/#2d2d2d; 
}

h1{
    text-align: center;
    font-size: 7vh;
    color: #999;
}

img, h2, li, embed, p, tr, a{ 
    visibility: hidden;
     color: #999;
     font-size: 4vh;
}

.all{
    text-align: center;
}

.überschrift{
font-size: 5vh;
}

.longtext{
    text-align: left;
    color: black;
    background-color: darkgrey;
    border-radius: 30px;
    padding: 10px;
    margin-left: auto;
    margin-right: auto;
    width: 38em
}

.longtext b{
   background-color: darkgray;
    margin: 5px;
    padding: 2px;
    border-radius: 30px;
}

.longtext strong{
   font-size: 20px;
   background-color: darkgray;
   color: midnightblue;
}

.longtext2{
    margin-left: auto;
    margin-right: auto;
    width: 38em 
}

a {
    font-size: 50px;
    color: black;
    text-decoration: none;
    background-color: indianred;
    border-radius: 30px;
    padding: 2px;
}
/* Scrollleiste ausblenden */
body::-webkit-scrollbar {
  display: none;
}
body{
-ms-overflow-style: none;
}



/*       Übergänge           */

.horizTranslate {
 text-align: left;
  -webkit-transition: 3s;
  -moz-transition: 3s;
  -ms-transition: 3s;
  -o-transition: 3s;
  transition: 3s;
  margin-left: 50% !important;
}



.horizp{
 text-align: center;
  -webkit-transition: 3s;
  -moz-transition: 3s;
  -ms-transition: 3s;
  -o-transition: 3s;
  transition: 3s;
  margin-left: 20% !important;
    margin-right: auto;
    width: 30em 
}

.fade-in {
	opacity: 1;
	animation-name: fadeInOpacity;
	animation-iteration-count: 1;
	animation-timing-function: ease-in;
	animation-duration: 0.5s;
}

@keyframes fadeInOpacity {
	0% {
		opacity: 0;
	}
	100% {
		opacity: 1;
	}
}