Brush up on theory and practice with real HTML interview questions on markup, semantics, forms, web APIs, and more.

Ace the Front End Interview

Ace the HTML

body {
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

/* style the container */
.container {
  position: relative;
  border-radius: 5px;
  background-color: #e7e3f3;
  padding: 20px 0 30px 0;
} 

/* style inputs and link buttons */
button, input,
.btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 4px;
  margin: 5px 0;
  opacity: 0.85;
  display: inline-block;
  font-size: 17px;
  line-height: 20px;
  text-decoration: none; /* remove underline from anchors */
}

input:hover,
.btn:hover {
  opacity: 1;
}

/* add appropriate colors to fb, twitter and google buttons */
.fb {
  background-color: #3B5998;
  color: white;
}

.twitter {
  background-color: #55ACEE;
  color: white;
}

.linkedin {
  background-color: #0e1b4a;
  color: white;
}


/* style the submit button */
button[type=submit] {
  background-color: #6d37bc;
  color: white;
  cursor: pointer;
}

button[type=submit]:hover {
  background-color: #45a049;
}

/* Two-column layout */
.col {
  float: left;
  width: 50%;
  margin: auto;
  padding: 0 50px;
  margin-top: 6px;
}

/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}

/* vertical line */
.vl {
  position: absolute;
  left: 50%;
  transform: translate(-50%);
  border: 2px solid #ddd;
  height: 175px;
}

/* text inside the vertical line */
.vl-innertext {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  background-color: #f1f1f1;
  border: 1px solid #ccc;
  border-radius: 50%;
  padding: 8px 10px;
}

/* hide some text on medium and large screens */
.hide-md-lg {
  display: none;
}

/* bottom container */
.bottom-container {
  text-align: center;
  background-color: #37169ab2;
  border-radius: 0px 0px 4px 4px;
}

/* Responsive layout - when the screen is less than 650px wide, make the two columns stack on top of each other instead of next to each other */
@media screen and (max-width: 650px) {
  .col {
    width: 100%;
    margin-top: 0;
  }
  /* hide the vertical line */
  .vl {
    display: none;
  }
  /* show the hidden text on small screens */
  .hide-md-lg {
    display: block;
    text-align: center;
  }
}

<html>
<head>
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
</head>
<body>
  <div class="container">
    <h1 style="text-align:center">Educative - Interactive Courses for Software Developers</h1>

    <form action="/action_page.php">
      <div class="row">
        <h3 style="text-align:center">Log in to Educative</h3>
        <div class="vl">
          <span class="vl-innertext">or</span>
        </div>

        
        <div class="col">
          <button type="button" class="fb btn"> <i class="fa fa-facebook-square" aria-hidden="true"></i> Login with Facebook </button>
          <button type="button" class="twitter btn"> <i class="fa fa-twitter-square" aria-hidden="true"></i> Login with Twitter </button>
          <button type="button" class="linkedin btn"> <i class="fa fa-linkedin-square" aria-hidden="true"></i> Login with LinkedIn </button>
        </div>

        
        <div class="col">
          <div class="hide-md-lg">
            <p>Or sign in manually:</p>
          </div>

          <input type="text" name="username" placeholder="Username" required>
          <input type="password" name="password" placeholder="Password" required>
          <button type="submit" onclick="reset()">Login</button>
        </div>
      </div>
    </form>
  </div>

  
  <div class="bottom-container">
    <div class="row">
      <div class="col">
        <button type="button" class="btn">Sign up</button> 
      </div>
      <div class="col">
        <button type="button" class="btn">Forgot password?</button>
      </div>
    </div>
  </div>
</body>
</html>

codemirror

body {
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

/* style the container */
.container {
  position: relative;
  border-radius: 5px;
  background-color: #e7e3f3;
  padding: 20px 0 30px 0;
} 

/* style inputs and link buttons */
button, input,
.btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 4px;
  margin: 5px 0;
  opacity: 0.85;
  display: inline-block;
  font-size: 17px;
  line-height: 20px;
  text-decoration: none; /* remove underline from anchors */
}

input:hover,
.btn:hover {
  opacity: 1;
}

/* add appropriate colors to fb, twitter and google buttons */
.fb {
  background-color: #3B5998;
  color: white;
}

.twitter {
  background-color: #55ACEE;
  color: white;
}

.linkedin {
  background-color: #0e1b4a;
  color: white;
}

/* style the submit button */
button[type=submit] {
  background-color: #6d37bc;
  color: white;
  cursor: pointer;
}

button[type=submit]:hover {
  background-color: #45a049;
}


/* Two-column layout */
.col {
  float: left;
  width: 50%;
  margin: auto;
  padding: 0 50px;
  margin-top: 6px;
}

/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}

/* vertical line */
.vl {
  position: absolute;
  left: 50%;
  transform: translate(-50%);
  border: 2px solid #ddd;
  height: 175px;
}

/* text inside the vertical line */
.vl-innertext {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  background-color: #f1f1f1;
  border: 1px solid #ccc;
  border-radius: 50%;
  padding: 8px 10px;
}

/* hide some text on medium and large screens */
.hide-md-lg {
  display: none;
}

/* bottom container */
.bottom-container {
  text-align: center;
  background-color: #37169ab2;
  border-radius: 0px 0px 4px 4px;
}

/* Responsive layout - when the screen is less than 650px wide, make the two columns stack on top of each other instead of next to each other */
@media screen and (max-width: 650px) {
  .col {
    width: 100%;
    margin-top: 0;
  }
  /* hide the vertical line */
  .vl {
    display: none;
  }
  /* show the hidden text on small screens */
  .hide-md-lg {
    display: block;
    text-align: center;
  }
}

<html>
<head></head>
<body>
  
	<h1 style="text-align:center">Educative - Interactive Courses for Software Developers</h1>
  <h3 style="text-align:center">Log in to Educative</h3>
	<form>
		<input type="text" name="username" placeholder="Username" required>
		<input type="password" name="password" placeholder="Password" required>
    <button type="submit" onclick="reset()">Login</button>
	</form>

</body>
</html>

This lesson will help test your skills on login form creation and linking your login form with social media, with a bonus – a flavor of some CSS.
Let's get started!

Modern HTML5 Markup

HTML5 Semantics

Forms

Powerful Web APIs

Browsers

🖥️ PROJECT: Building a Social Media Login Form

Project: Final output

Getting started

Task 1