scroll - Use jQuery to display controls only in case of hidden content -


i want display controls scroll contents of div in case of overflow. i'm not sure have syntax right - appreciated.

my jsfiddle

my html

<div class="container">     <div class="content">         <div class="line-1">line 1</div>         <div class="line-2">line 2</div>         <div class="line-3">line 3</div>         <div class="line-4">line 4</div>         <div class="line-5">line 5</div>         <div class="line-6">line 6</div>         <div class="line-7">line 7</div>         <div class="line-8">line 8</div>         <div class="line-9">line 9</div>     </div>     <div class="buttons">     </div> </div> <div class="container">     <div class="content">         <div class="line-1">line 1</div>         <div class="line-2">line 2</div>         <div class="line-3">line 3</div>         <div class="line-4">line 4</div>         <div class="line-5">line 5</div>         <div class="line-6">line 6</div>     </div>     <div class="buttons">     </div> </div>

my javascript

if ((".content").offsetheight < (".content").scrollheight)     {         $( ".container .buttons" ).append( "<button>up</button><button>down</button>" );     }

my css

.container     {         margin-bottom: 20px;     }  .content     {         overflow: hidden;         height: 100px;         padding: 10px;         border: 1px solid #ccc;     }

you can way.

first need remove height .content , check if .content greater 100 if yes set 100px height div , append buttons.

your js this

$(".content").each(function(){     if($(this).height() > 100){         $(this).css("height","100px");         $(this).next(".buttons").append( "<button>up</button><button>down</button>" );     } });

demo


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