Utilizing Background Images in CSS/HTML

Just starting out in the front end world! :D I'm having trouble setting the background of my login page. It's not extending to cover the entire page. Here's how it looks:https://i.sstatic.net/bQQLv.png

This is the HTML code I'm using:

<body>
<div class="login" >
     <h3>Login </h3>
      <form>
        <div class="ema-pass">
          <label for="email" >Email</label>
          <br>
          <input  required  type="text" style="border-radius: 5px;">
          <br>
          <label for="password" >Password</label>
          <br>
          <input  type="password" style="border-radius: 5px;">
        </div>
        <button>Login</button>
        <br>
        <p>Or sign in with</p>
        <div class="google-sign-in">
            <div class="col-md-3">
              <a class="btn-outline-dark" href="/users/googleauth" role="button" style="text-transform:none">
                <img width="20px" style="margin-bottom:3px; margin-right:5px" alt="Google sign-in" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Google_%22G%22_Logo.svg/512px-Google_%22G%22_Logo.svg.png" />
              </a>
            </div>
          </div>
        <span>Don't have an account? 
        <a routerLink="/signUp">signUp</a></span>
      </form>
  </div>
</body>

The issue seems to be in the CSS section, specifically here:

body{
    background: #4261cf;
    background: -moz-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
    background: -webkit-gradient(linear, left bottom, right top, color-stop(0%, #3023ae), color-stop(100%, #53a0fd));
    background: -webkit-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
    background: -o-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
    background: -ms-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
    background: linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='$gradient-start', endColorstr='$gradient-end',GradientType=1 );
    color: white;
}
.login {
    margin: 400px auto;
    text-align: center;
    max-width: 400px;
    border-radius: 10px;
    letter-spacing: 0.5px;
    line-height: 55px;
    font-family: 'Comic Sans MS';
    box-shadow: 1px 0px 10px 3px;
    z-index: 1;
}

I attempted changing .login { margin: 400px auto; to margin: 0 auto;, but it doesn't center the page like I want it to.

Answer №1

One possible solution is to adjust the styling of the .login div by removing the margin to allow the background to cover the screen. Additionally, you can add a parent div around the .login div and centrally align the .login div within that parent div.

Here is an example implementation:

<body>
  <div class="parentLogin">
    <div class="login">
      <h3>Login</h3>
      <form>
        <div class="ema-pass">
          <label for="email">Email</label>
          <br>
          <input required type="text" style="border-radius: 5px;">
          <br>
          <label for="password">Password</label>
          <br>
          <input type="password" style="border-radius: 5px;">
        </div>
        <button>Login</button>
        <br>
        <p>Or sign in with</p>
        <div class="google-sign-in">
          <div class="col-md-3">
            <a class="btn-outline-dark" href="/users/googleauth" role="button" style="text-transform:none">
              <img width="20px" style="margin-bottom:3px; margin-right:5px" alt="Google sign-in" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Google_%22G%22_Logo.svg/512px-Google_%22G%22_Logo.svg.png" />
            </a>
          </div>
        </div>
        <span>Don't have an account? 
          <a routerLink="/signUp">SignUp</a>
        </span>
      </form>
    </div>
  </div>
</body>
body{
    background: #4261cf;
    background: -moz-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
    background: -webkit-gradient(linear, left bottom, right top, color-stop(0%, #3023ae), color-stop(100%, #53a0fd));
    background: -webkit-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
    background: -o-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
    background: -ms-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
    background: linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='$gradient-start', endColorstr='$gradient-end',GradientType=1);
    color: white;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
}
.login {
    text-align: center;
    max-width: 400px;
    border-radius: 10px;
    letter-spacing: 0.5px;
    line-height: 55px;
    font-family: 'Comic Sans MS';
    box-shadow: 1px 0px 10px 3px;
    z-index: 1;
}
.parentLogin{
  display: flex;
  justify-content: center;
  align-items: center;
}

Answer №2

To address this issue, you can adjust the background to cover the full screen by using background-size: cover;. Additionally, set the background-attachment property to fixed. This will prevent the gradient transition from appearing as you scroll and instead fill the entire viewport seamlessly.

Below is a sample code snippet with a demonstration element of 3000px:

body {
  background: #4261cf;
  background: -moz-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
  background: -webkit-gradient( linear, left bottom, right top, color-stop(0%, #3023ae), color-stop(100%, #53a0fd));
  background: -webkit-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
  background: -o-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
  background: -ms-linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
  background: linear-gradient(45deg, #3023ae 0%, #53a0fd 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='$gradient-start', endColorstr='$gradient-end', GradientType=1);
  color: white;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
}

.login {
  margin: 400px auto;
  text-align: center;
  max-width: 400px;
  border-radius: 10px;
  letter-spacing: 0.5px;
  line-height: 55px;
  font-family: "Comic Sans MS";
  box-shadow: 1px 0px 10px 3px;
  z-index: 1;
}

.large-content {
  width: 100%;
  height: 3000px;
}
<body>
  <div class="login">
    <h3>Login </h3>
    <form>
      <div class="ema-pass">
        <label for="email">Email</label>
        <br>
        <input required type="text" style="border-radius: 5px;">
        <br>
        <label for="password">Password</label>
        <br>
        <input type="password" style="border-radius: 5px;">
      </div>
      <button>Login</button>
      <br>
      <p>Or sign in with</p>
      <div class="google-sign-in">
        <div class="col-md-3">
          <a class="btn-outline-dark" href="/users/googleauth" role="button" style="text-transform:none">
            <img width="20px" style="margin-bottom:3px; margin-right:5px" alt="Google sign-in" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Google_%22G%22_Logo.svg/512px-Google_%22G%22_Logo.svg.png" />
          </a>
        </div>
      </div>
      <span>Don't have an account?
        <a routerLink="/signUp">signUp</a></span>
    </form>
    <div class="large-content"></div>
  </div>
</body>

You may also want to consider adding a max-height on the form to prevent excessive stretching. It should occupy 100% of the viewheight minus the margin of 800px (400px + 400px) that has been set.

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