body {
   margin-bottom: 10px;
   margin-left: 10px;
   margin-right: 10px;
   margin-top: 10px;
 }

.headline {
   font-family: -apple-system, Arial;
   font-size: 26px;
   font-weight: bold;
}

ol, li {
   font-family: -apple-system, Arial;
   font-size: 20px;
}

 .che_button {
   background-image: linear-gradient(#42A1EC, #0070C9);
   border: 1px solid #0077CC;
   border-radius: 5px;
   box-sizing: border-box;
   color: #FFF;
   cursor: pointer;
   direction: ltr;
   display: block;
   font-family: -apple-system, Arial;
   font-size: 40px;
   font-weight: bold;
   height: 10%;
   letter-spacing: -.022em;
   line-height: 1.47059;
   margin-bottom: 10px;
   min-width: 30px;
   overflow: visible;
   padding: 50px 0px;
   text-align: center;
   touch-action: manipulation;
   user-select: none;
   vertical-align: baseline;
   -webkit-user-select: none;
   white-space: nowrap;
   width: 100%;
 }

 .che_button:hover {
   background-image: linear-gradient(#51A9EE, #147BCD);
   border-color: #1482D0;
   text-decoration: none;
 }

 .che_button:active {
   background-image: linear-gradient(#3D94D9, #0067B9);
   border-color: #006DBC;
   outline: none;
 }

 .che_button:focus {
   box-shadow: rgba(131, 192, 253, 0.5) 0 0 0 3px;
   outline: none;
 }

 .che_button:disabled {
   cursor: default;
   opacity: .3;
 }

img {
   border: 1px solid #0077CC;	
}