casiocss.css

*{
    margin: 0;
    padding: 0;
    user-select: none;
    background-color: black;
    color: #14ff62;
}
@font-face {
    font-family: digitalFont;
    src: url(casiofont.ttf);
}
#clock{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 75vh;
}
#time{
    font-family: digitalFont;
    font-size: 150px;
    line-height: 125px;
    /* width: 20px; */
    text-align: center;
}
#daydate{
    font-family: sans-serif;
    margin: 20px 0px;
    font-size: 30px;
}
#format{
    font-family: sans-serif;
    font-size: 20px;
    display: flex;
    align-items: center;
}
#switchLabel{
    margin: 0px 10px;
}
.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #14ff62;
  -webkit-transition: .4s;
  transition: .4s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: black;
  -webkit-transition: .4s;
  transition: .4s;
}

input:checked + .slider {
  background-color: #14ff62;
}

input:focus + .slider {
  box-shadow: 0 0 1px #14ff62;
}

input:checked + .slider:before {
  -webkit-transform: translateX(26px);
  -ms-transform: translateX(26px);
  transform: translateX(26px);
}

.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;
}

footer{
    font-family: sans-serif;
    position:absolute;
    bottom:0;
    width:100%;
    height: 40px;
    text-align: center;
}

@media only screen and (max-width: 768px) {
  #time{
      font-size: 75px;
  }
  #daydate{
      font-size: 20px;
  }
}