How to make a div fill a remaining horizontal space?

Question

I have 2 divs: one in the left side and one in the right side of my page. The one in the left side has fixed width and I want the one of the right side to f

Answer 1

I have been working on this problem for two days and have a solution that may work for you and anyone else trying to make a responsive Fixed width left and have the right side fill in the remainder of the screen without wrapping around the left side. The intention I assume is to make the page responsive in browsers as well as mobile devices.

Here is the Code

// Fix the width of the right side to cover the screen when resized
$thePageRefreshed = true;
// The delay time below is needed to insure that the resize happens after the window resize event fires
// In addition the show() helps.  Without this delay the right div may go off screen when browser is refreshed 
setTimeout(function(){
    fixRightSideWidth();
    $('.right_content_container').show(600);
}, 50);

// Capture the window resize event (only fires when you resize the browser).
$( window ).resize(function() {
    fixRightSideWidth();
});

function fixRightSideWidth(){
    $blockWrap = 300; // Point at which you allow the right div to drop below the top div
    $normalRightResize = $( window ).width() - $('.left_navigator_items').width() - 20; // The -20 forces the right block to fall below the left
    if( ($normalRightResize >= $blockWrap) || $thePageRefreshed == true ){
        $('.right_content_container').width( $normalRightResize );
        $('.right_content_container').css("padding-left","0px");
        
        /* Begin test lines these can be deleted */
        $rightrightPosition = $('.right_content_container').css("right");
        $rightleftPosition = $('.right_content_container').css("left");
        $rightwidthPosition = $('.right_content_container').css("width");
        $(".top_title").html('window width: '+$( window ).width()+" "+'width: '+$rightwidthPosition+" "+'right: '+$rightrightPosition);
        /* End test lines these can be deleted */
    
    
    }
    else{
        if( $('.right_content_container').width() > 300 ){
            $('.right_content_container').width(300);
        }
        
        /* Begin test lines these can be deleted */
        $rightrightPosition = $('.right_content_container').css("right");
        $rightleftPosition = $('.right_content_container').css("left");
        $rightwidthPosition = $('.right_content_container').css("width");
        $(".top_title").html('window width: '+$( window ).width()+" "+'width: '+$rightwidthPosition+" "+'right: '+$rightrightPosition);
        /* End test lines these can be deleted */
    
    }
    if( $thePageRefreshed == true ){
        $thePageRefreshed = false;
    }
}

/* NOTE: The html and body settings are needed for full functionality
and they are ignored by jsfiddle so create this exapmle on your web site
*/
html {
    min-width: 310px;
    background: #333;
    min-height:100vh;
}

body{
	background: #333;
	background-color: #333;
	color: white;
    min-height:100vh;
}

.top_title{
  background-color: blue;
  text-align: center;
}

.bottom_content{
	border: 0px;
	height: 100%;
}

.left_right_container * {
    position: relative;
    margin: 0px;
    padding: 0px;
    background: #333 !important;
    background-color: #333 !important;
    display:inline-block;
    text-shadow: none;
    text-transform: none;
    letter-spacing: normal;
    font-size: 14px;
    font-weight: 400;
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif;
    border-radius: 0;
    box-sizing: content-box;
    transition: none;
}

.left_navigator_item{
	display:inline-block;
	margin-right: 5px;
	margin-bottom: 0px !important;
	width: 100%;
	min-height: 20px !important;
	text-align:center !important;
	margin: 0px;
	padding-top: 3px;
	padding-bottom: 3px;
	vertical-align: top;
}

.left_navigator_items {
    float: left;
    width: 150px;
}

.right_content_container{
    float: right;
    overflow: visible!important;
    width:95%; /* width don't matter jqoery overwrites on refresh */
    display:none;
    right:0px;
}

.span_text{
	background: #eee !important;
	background-color: #eee !important;
	color: black !important;
	padding: 5px;
	margin: 0px;
}

Test Title

    

        

            
Dashboard
            
Calendar
            
Calendar Validator
            
Bulletin Board Slide Editor
            
Bulletin Board Slide Show (Live)
            
TV Guide
        
        

            
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam ullamcorper maximus tellus a commodo. Fusce posuere at nisi in venenatis. Sed posuere dui sapien, sit amet facilisis purus maximus sit amet. Proin luctus lectus nec rutrum accumsan. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Ut fermentum lectus consectetur sapien tempus molestie. Donec bibendum pulvinar purus, ac aliquet est commodo sit amet. Duis vel euismod mauris, eu congue ex. In vel arcu vel sem lobortis posuere. Cras in nisi nec urna blandit porta at et nunc. Morbi laoreet consectetur odio ultricies ullamcorper. Suspendisse potenti. Nulla facilisi.

Quisque cursus lobortis molestie. Aliquam ut scelerisque leo. Integer sed sodales lectus, eget varius odio. Nullam nec dapibus lorem. Aenean a mattis velit, ut porta nunc. Phasellus aliquam volutpat molestie. Aliquam tristique purus neque, vitae interdum ante aliquam ut.

Pellentesque quis finibus velit. Fusce ac pulvinar est, in placerat sem. Suspendisse nec nunc id nunc vestibulum hendrerit. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Mauris id lectus dapibus, tempor nunc non, bibendum nisl. Proin euismod, erat nec aliquet mollis, erat metus convallis nulla, eu tincidunt eros erat a lectus. Vivamus sed mattis neque. In vitae pellentesque mauris. Ut aliquet auctor vulputate. Duis eleifend tincidunt gravida. Sed tincidunt blandit tempor.

Duis pharetra, elit id aliquam placerat, nunc arcu interdum neque, ac luctus odio felis vitae magna. Curabitur commodo finibus suscipit. Maecenas ut risus eget nisl vehicula feugiat. Sed sed bibendum justo. Curabitur in laoreet dolor. Suspendisse eget ligula ac neque ullamcorper blandit. Phasellus sit amet ultricies tellus.

In fringilla, augue sed fringilla accumsan, orci eros laoreet urna, vel aliquam ex nulla in eros. Quisque aliquet nisl et scelerisque vehicula. Curabitur facilisis, nisi non maximus facilisis, augue erat gravida nunc, in tempus massa diam id dolor. Suspendisse dapibus leo vel pretium ultrices. Sed finibus dolor est, sit amet pharetra quam dapibus fermentum. Ut nec risus pharetra, convallis nisl nec, tempor nisl. Vivamus sit amet quam quis dolor dapibus maximus. Suspendisse accumsan sagittis ligula, ut ultricies nisi feugiat pretium. Cras aliquam velit eu venenatis accumsan. Integer imperdiet, eros sit amet dignissim volutpat, tortor enim varius turpis, vel viverra ante mauris at felis. Mauris sed accumsan sapien. Interdum et malesuada fames ac ante ipsum primis in faucibus. Ut vel magna commodo, facilisis turpis eu, semper mi. Nulla massa risus, bibendum a magna molestie, gravida maximus nunc.
        
    

Here is my fiddle that may just work for you as it did for me. https://jsfiddle.net/Larry_Robertson/62LLjapm/