CSS Adaptive Layout (left and right fixed center adaptive or right fixed left adaptive), css adaptive

CSS Adaptive Layout (left and right fixed center adaptive or right fixed left adaptive), css adaptive

I: Right side fixed width left side adaptive

Method 1: Use margin-right on the left and float: right on the right.

The HTML code can be written as follows:
<Div class = "box-left">
<A href = "" target = "_ blank"> long en </a>
</Div>

<Div class = "box-right">
<A href = "" target = "_ blank"> long en </a>
</Div>

The CSS code can be written as follows:

. Box-left {height: 300px; margin-right: 300px; background: # DDD ;}
. Box-right {width: 300px; height: 300px; float: right; background: # AAA ;}

The above code can achieve the effect.

2nd Methods: Use margin-right on the left side and use absolute positioning on the right side as shown in the following code:

The HTML code is as follows:

<Div class = "bd">
<Div class = "bd-left">
<A href = "" target = "_ blank"> long en </a>
</Div>
<Div class = "bd-right">
<A href = "" target = "_ blank"> long en </a>
</Div>
</Div>

The CSS code is as follows:

. Bd {position: relative ;}
. Bd-left {height: 300px; margin-right: 300px; background: # DDD ;}
. Bd-right {width: 300px; height: 300px; position: absolute; top: 0; right: 0; background: # AAA ;}

 Method 3: float the right side and use a negative margin value

The HTML code is as follows:

<Div class = "wrap">
<Div class = "wrap-left">
<Div class = "left-con">
<A href = "" target = "_ blank"> long en </a>
</Div>
</Div>
<Div class = "wrap-right">
<A href = "" target = "_ blank"> long en </a>
</Div>
</Div>

The CSS code is as follows:

. Wrap {overflow: hidden; background: # EEE ;}
. Wrap-right {width: 300px; position: relative; float: right; margin-left:-300px; background: # AAA ;}
. Wrap-left {width: 100%; float: left ;}
. Left-con {margin-right: 300px; background: # DDD ;}
. Left-con,. wrap-right {height: 300px ;}

The above are the three layout methods of html css and two columns I have summarized (fixed on the right side of the adaptive tab on the left). If you have any shortcomings, please kindly advise. Next let's take a look at the three-column layout(Fixed and adaptive between left and right ).

II:Adaptive between left and right fixed centers

 I have summarized the following two methods:

First, the left and right sides adopt the margin-left and margin-right methods in the middle of the float.

 The Code is as follows:

<Div style = "width: 100%; margin: 0 auto;">
<Div style = "width: 200px; float: right; this is the fixed width of the right content </div>
<Div style = "width: 150px; float: left; background: # 6FF"> This is the fixed width of the left-side content </div>
<Div style = "margin-left: 150px; margin-right: 200px; middle content, adaptive width </div>
</Div>

 Second: the left and right sides adopt the absolute positioning center and the margin-left margin-right method:

The HTML code is as follows:

<Div class = "l-sidebar"> </div>
<Div class = "mainbar"> </div>
<Div class = "r-sidebar"> </div>

The CSS code is as follows:

. L-sidebar {
Width: 200px;
Height: 500px;
Position: absolute;
Top: 0;
Left: 0;
Background: blue;
}
. Mainbar {
Margin-left: 200px;
Height: 500px;
Margin-right: 300px;
Background: green;
}
. R-sidebar {
Width: 300px;
Height: 500px;
Position: absolute;
Top: 0;
Right: 0;
Background: blue;
}