What are the Basic CSS Forms?

If you are interested to learn about the CSS Selectors

CSS Forms is a technique that generates dynamic changes in the appearance of a website based on the screen size and the orientation of the device. It makes a web application useable for multiple types of devices.

Styling Input Fields

Use the width property to determine the width of the input field:

Example

input {
  width: 100%;
}

The example above applies to all <input> elements. If you only want to style a specific input type, you can use attribute selectors:

• input[type=text] – will only select text fields
• input[type=password] – will only select password fields
• input[type=number] – will only select number fields
• etc..

Padded Inputs

Use the padding property to add space inside the text field.

Tip: When you have many inputs after each other, you might also want to add some margin, to add more space outside of them:

Example

input[type=text] {
  width: 100%;
  padding: 12px 20px;
  margin: 8px 0;
  box-sizing: border-box;
}

Note that we have set the box-sizing property to border-box. This makes sure that the padding and eventually borders are included in the total width and height of the elements

Bordered Inputs

Use the border property to change the border size and color, and use the border-radius property to add rounded corners.

input[type=text] {
  border: 2px solid red;
  border-radius: 4px;
}

If you only want a bottom border, use the border-bottom property:First Name 

Example

input[type=text] {
  border: none;
  border-bottom: 2px solid red;
}

Colored Inputs

Use the background-color property to add a background color to the input, and the color property to change the text color:

Example

input[type=text] {
  background-color: #3CBC8D;
  color: white;
}

Focused Inputs

By default, some browsers will add a blue outline around the input when it gets focus (clicked on). You can remove this behavior by adding outline: none; to the input.

Example

input[type=text]:focus {
  background-color: lightblue;
}

Example

input[type=text]:focus {
  border: 3px solid #555;
}

Input with icon/image

If you want an icon inside the input, use the background-image property and position it with the background-position property. Also notice that we add a large left padding to reserve the space of the icon:

Example

input[type=text] {
  background-color: white;
  background-image: url('searchicon.png');
  background-position: 10px 10px;
  background-repeat: no-repeat;
  padding-left: 40px;
}

Animated Search Input

In this example we use the CSS transition property to animate the width of the search input when it gets focus.

Example

input[type=text] {
  transition: width 0.4s ease-in-out;
}

input[type=text]:focus {
  width: 100%;
}

Styling Textareas

Tip: Use the resize property to prevent textareas from being resized (disable the “grabber” in the bottom right corner):

Example

textarea {
  width: 100%;
  height: 150px;
  padding: 12px 20px;
  box-sizing: border-box;
  border: 2px solid #ccc;
  border-radius: 4px;
  background-color: #f8f8f8;
  resize: none;
}

Styling Select Menus

Example

select {
  width: 100%;
  padding: 16px 20px;
  border: none;
  border-radius: 4px;
  background-color: #f1f1f1;
}

Styling Input Buttons

Example

input[type=button], input[type=submit], input[type=reset] {
  background-color: #04AA6D;
  border: none;
  color: white;
  padding: 16px 32px;
  text-decoration: none;
  margin: 4px 2px;
  cursor: pointer;
}

/* Tip: use width: 100% for full-width buttons */