.btn-primary {
    background-color: #7240ff;
}

.btn-primary:hover{
    background-color: #5621ea;

}

.vertical-center {
    min-height: 100%;  /* Fallback for browsers do NOT support vh unit */
    min-height: 100vh; /* These two lines are counted as one :-)       */
  
    display: flex;
    align-items: center;
}

input:required:invalid {
    border-color: #c00000;
  }
.h1 {
    font-weight: bolder;
    font-size: 40;
}