Re-lable, we have several different type parameters:
text is written in the text type of parameter
Enter the password regardless of what the stars are displayed
Enter the date of this calendar is a
radis radio circles options
checkbox to tick the option box shape
hidden hidden text
file used to upload files to the backend
There are several buttons Types
button
This is a normal button, seemingly useless, but there is great potential
reset
is a credit button
submit
submit button can automatically trigger actions submitted form data form
input tags can increase disable attribute, disable this box
input tag can add value property is the default value
男<input type="radio" name="gender" value="male">
女<input type="radio" name="gender" value="female" checked>You can add a checked attribute
These are form content
css content is relatively simple, there are a variety of selectors
基本选择器<br>
元素选择器<br>
id selectors
class selectors
universal selector
combination selector
div span descendant selectors
div> span son selector
div + span adjacent selectors
div ~ span brother selectors
we will input the state after the box mouse into is called the input gets focus focus focus
state after mouse-out called the input box loses focus
Pseudo-element selectors (remove the negative impact caused by floating)
You can add text by css
选择器优先级<br>
1.选择器相同的情况下 引入方式不同<br>
遵循就近原则 谁离标签更近 就听谁的<br>
2.选择器不同的情况下 <br>
行内选择器 > id选择器(其次) > 类选择器(使用最频繁) > 元素选择器<br>