#regForm {
  background-color: #ffffff;
  margin: 100px auto;
  padding: 40px;
  width: 70%;
  min-width: 300px;
}

h1 {
  text-align: center;  
}

input {
  padding: 10px;
  width: 100%;
  font-size: 17px;
  border: 1px solid #aaaaaa;
}

/* Mark input boxes that gets an error on validation: */
input.invalid {
  background-color: #ffdddd;
}

/* Hide all steps by default: */
.tab {
  display: none;
}

button {
  background-color: #4CAF50;
  color: #ffffff;
  border: none;
  padding: 10px 20px;
  font-size: 17px;
  cursor: pointer;
}

button:hover {
  opacity: 0.8;
}

#prevBtn {
  background-color: #bbbbbb;
}

.btn-link {
  font-size: 30px;
}

/* Make circles that indicate the steps of the form: */
.step {
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: #bbbbbb;
  border: none;  
  border-radius: 50%;
  display: inline-block;
  opacity: 0.5;
}

.step.active {
  opacity: 1;
}

/* Mark the steps that are finished and valid: */
.step.finish {
  background-color: #4CAF50;
}

div.tab section {
  display: flex;
  flex-flow: row wrap;
}
div.tab section > div.radios {
  flex: 1;
  padding: 0.5rem;
}
input[type="radio"] {
  display: none;
}
input[type="radio"]:not(:disabled) ~ label {
  cursor: pointer;
}
input[type="radio"]:disabled ~ label {
  color: #bcc2bf;
  border-color: #bcc2bf;
  box-shadow: none;
}
label {
  height: 100%;
  display: block;
  background: white;
  border: 2px solid hsla(150, 75%, 50%, 1);
  border-radius: 20px;
  padding: 3rem 0;
  margin-bottom: 1rem;
  //margin: 1rem;
  min-width: 140px;
  text-align: center;
  box-shadow: 0px 3px 10px -2px hsla(150, 5%, 65%, 0.5);
  position: relative;
}
input[type="radio"]:checked + label {
  background: hsla(150, 75%, 50%, 1);
  color: hsla(215, 0%, 100%, 1);
  box-shadow: 0px 0px 20px hsla(150, 100%, 50%, 0.75);
}
input[type="radio"]:checked + label::after {
    color: hsla(215, 5%, 25%, 1);
    font-family: "FontAwesome";
    border: 2px solid hsla(150, 75%, 45%, 1);
    content: "\f00c";
    font-size: 24px;
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    height: 50px;
    width: 50px;
    line-height: 50px;
    text-align: center;
    border-radius: 50%;
    background: white;
    box-shadow: 0px 2px 5px -2px hsla(0, 0%, 0%, 0.25);
  }
}
input[type="radio"]#control_05:checked + label {
  background: red;
  border-color: red;
}

@media only screen and (max-width: 700px) {
  div.tab section {
    flex-direction: column;
  }
}

    .invoice-box {
        max-width: 800px;
        margin: 20px auto;
        padding: 30px;
        border: 1px solid #eee;
        box-shadow: 0 0 10px rgba(0, 0, 0, .15);
        line-height: 24px;
        color: #555;
    }
    
    .invoice-box table {
        width: 100%;
        line-height: inherit;
        text-align: left;
    }
    
    .invoice-box table td {
        padding: 5px;
        vertical-align: top;
    }
    
    .invoice-box table tr td:nth-child(2) {
        text-align: right;
    }
    
    .invoice-box table tr.top table td {
        padding-bottom: 20px;
    }
    
    .invoice-box table tr.top table td.title {
        font-size: 45px;
        line-height: 45px;
        color: #333;
    }
    
    .invoice-box table tr.information table td {
        padding-bottom: 40px;
    }
    
    .invoice-box table tr.heading td {
        background: #eee;
        border-bottom: 1px solid #ddd;
        font-weight: bold;
    }
    
    .invoice-box table tr.details td {
        padding-bottom: 20px;
    }
    
    .invoice-box table tr.item td{
        border-bottom: 1px solid #eee;
    }
    
    .invoice-box table tr.item.last td {
        border-bottom: none;
    }
    
    .invoice-box table tr.total td:nth-child(2) {
        border-top: 2px solid #eee;
        font-weight: bold;
    }
    
    @media only screen and (max-width: 600px) {
        .invoice-box table tr.top table td {
            width: 100%;
            display: block;
            text-align: center;
        }
        
        .invoice-box table tr.information table td {
            width: 100%;
            display: block;
            text-align: center;
        }
    }
    
    /** RTL **/
    .rtl {
        direction: rtl;
    }
    
    .rtl table {
        text-align: right;
    }
    
    .rtl table tr td:nth-child(2) {
        text-align: left;
    }