Frontend/24_12_16/projekt/src/App.css

.App {
  text-align: center;
}

.App-logo {
  height: 40vmin;
  pointer-events: none;
}

@media (prefers-reduced-motion: no-preference) {
  .App-logo {
    animation: App-logo-spin infinite 20s linear;
  }
}

.App-header {
  background-color: #282c34;
  /*min-height: 20vh;*/
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: calc(10px + 2vmin);
  color: white;
}



.App-link {
  color: #61dafb;
}

@keyframes App-logo-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/*Hozzáadott css*/

body{
  background-color: #282c34;
  /*min-height: 20vh;*/
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: calc(10px + 2vmin);
  color: white;
}

button{
  display: flex;
  align-self: center;
}



table {
  width: 50%;
  margin: 20px auto;
  border-collapse: collapse;
  text-align: center;
}
th, td {
  padding: 10px;
  border: 1px solid black;
  max-height: 200px;
}
th {
  background-color: #606570;
}

.image{
  max-height: 100px;
}

.gomb{
  background-color: #282c34;
  color: aliceblue;
  border: #61dafb 2px solid;
}

.container {
  height: 200px;
  position: relative;  
}

.vertical-center {
  margin: 0;
  position: absolute;
  top: 50%;
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
}