.form-group {   display:flex;   flex-direction:column;   margin-bottom:20px; } input {   padding:10px;   font-size:16px;   margin-bottom:10px;   border:1px solid #ccc;   border-radius:4px; } .result {   font-size:16px;   margin-top:20px; } .error {   color:red; } .success {   color:green; } div#result table th {   background:linear-gradient(45deg, #1e55b2, #3477e8) !important;   color:#fff; } div#result {   overflow:auto; } .result.skeleton {   height:800px;   width:100%;   background:linear-gradient(90deg,#eeeeee 25%,#dddddd 50%,#eeeeee 75%);   background-size:200% 100%;   animation:shimmer 1.6s infinite !important;   border-radius:8px;   position:relative; } @keyframes shimmer {  0% {   background-position:200% 0;  }  100% {   background-position:-200% 0;  } }