html, body {
    margin: 0;
    padding: 0;
}

.top{
    height: 260px;
    padding: 52px;
    padding-top: 10px;
    padding-bottom: 20px;
    text-align: center;
    background: linear-gradient(270deg, #04c3ce, #ec1873);
    background-size: 400% 400%;

    -webkit-animation: BackgroundAnimation 20s ease infinite;
    -moz-animation: BackgroundAnimation 20s ease infinite;
    animation: BackgroundAnimation 20s ease infinite;
}

@-webkit-keyframes BackgroundAnimation {
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}
}
@-moz-keyframes BackgroundAnimation {
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}
}
@keyframes BackgroundAnimation {
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}
}

.top h3{
    font-style: normal;
    font-weight: 800;
    
    font-size: 22px;
    line-height: 38px;
    /* identical to box height, or 173% */

    text-align: center;
    letter-spacing: -0.05em;
    color: white;
}

#number-input {
    background-color: rgba(0,0,0,0);
    border: none;
    border: 5px #D2D2D2 dotted;
    width: 100%;
    font-style: normal;
    font-weight: 800;
    font-size: 98px;
    line-height: 24px;
    text-align: center;
    color: #FFFFFF;
    -moz-appearance: textfield;
}

#number-input::-webkit-outer-spin-button,
#number-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.info-panel{
    padding: 37px;
    padding-bottom: 10px;
    padding-top: 10px;
    text-align: center;
    color: white;
    background: #1F2937;
}

.info-panel p{
    color: #D2D2D2;
}

.info-panel h3{
 margin-top: 27px;
}

footer {
    background: linear-gradient(270deg, #04c3ce, #ec1873);
    background-size: 400% 400%;

    -webkit-animation: BackgroundAnimation 20s ease infinite;
    -moz-animation: BackgroundAnimation 20s ease infinite;
    animation: BackgroundAnimation 20s ease infinite;
    color: white;
    padding: 0;
    margin: 0;
    text-align: center;
    font-size: large;
}

footer p {
    padding: 10px;
    margin: 0;
    line-height: 150px;
}