body {
  margin: auto;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.header {
  background-color: black;
  display: flex;
  justify-content: space-between;
  padding: 6px;
  color: white;
  flex: 0 0 auto;
}
.nowarp{
  display: flex;
}
h1{
  font-weight: 400;
  margin-top: auto;
  margin-bottom: auto;
  margin-left: 5px;
}
div.nowarp > p{
  margin-left: 0.4em;
}
.header input {
  margin-top: auto;
  margin-bottom: auto;
  margin-right: 5px;
}
#elements {
  display: flex;
  flex: 1 0 auto;
}
.elt {
  flex-grow: 1;
  display: flex;
  justify-content: center;
}
.elt > p {
  font-weight: bold;
}
.elt > button {
  margin: auto;
  padding: 20px;
  font-weight: 800;
  transition: .3s;
}
.elt > button:hover {
  transform: scale(1.2);
}
footer {
  background-color: black;
  display: flex;
  justify-content: space-between;
  padding: 10px;
  color: white;
  flex: 0 0 auto;
}
button {
  background-color: white;
  color: black;
  border: 0px;
  border-radius: 20px;
  font-weight: 600;
  padding-top: 3px;
  padding-bottom: 3px;
  padding-left: 10px;
  padding-right: 10px;
}
button:hover {
  background-color: whitesmoke;
  transform: scale(1.05);
}
footer > p {
  margin: 0;
}
button{
  cursor: pointer;
}
#marge{
  margin-right: 7em;
}