SitePoint Sponsor

User Tag List

Results 1 to 4 of 4
  1. #1
    SitePoint Member
    Join Date
    Aug 2011
    Posts
    3
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Cool CSS Positioning not working

    I need help with below code. It works fine except that I cannot change the position of the hover image. In other words the Top and Left does not change regardless of what I put in them. I am using IE7 and above. Anyone got an idea.

    THIS IS THE STYLE SHEET:

    <style>
    a.thumb{
    position:relative;
    display:block;
    width:30px;
    height:30px;
    background:url(images/preview.png) no-repeat;
    z-index:1;
    }
    a.thumb img{display:none; color:#000; }
    a.thumb:hover{color:#999; z-index:2; } /* for IE */
    a.thumb:hover img{display:block; border:none; position:absolute; top:200; left:200; z-index:2;}
    </style>


    THIS IS THE HTML BODY CODE:

    <a class="thumb" href=""><img src="images/screenshots/storeperformance.gif" /></a>

  2. #2
    Sploghm bronze trophy Victorinox's Avatar
    Join Date
    Nov 2008
    Posts
    749
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Welcome to Sitepoint

    The left and right values of a.thumb:hover img need to state a unit of measurement. Add "px" i.e. 200px and things should start happening.

  3. #3
    SitePoint Member
    Join Date
    Aug 2011
    Posts
    3
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks that worked!!!

  4. #4
    Non-Member nitinslash's Avatar
    Join Date
    Apr 2010
    Location
    Delhi
    Posts
    12
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Use this Css..

    #thumbBox{ /*Outermost DIV for thumbnail viewer*/
    position: absolute;
    left: 0;
    top: 0;
    width: auto;
    padding: 10px;
    padding-bottom: 0;
    background: #313131;
    visibility: hidden;
    z-index: 10;
    cursor: hand;
    cursor: pointer;
    }

    #thumbBox .footerbar{ /*Footer DIV of thumbbox that contains "close" link */
    font: bold 16px Tahoma;
    letter-spacing: 5px;
    line-height: 1.1em;
    color: white;
    padding: 5px 0;
    text-align: right;
    }


    #thumbBox #thumbImage{ /*DIV within thumbbox that holds the enlarged image */
    background-color: white;
    }

    #thumbLoading{ /*DIV for showing "loading" status while thumbbox is being generated*/
    position: absolute;
    visibility: hidden;
    border: 1px solid black;
    background-color: #EFEFEF;
    padding: 5px;
    z-index: 5;
    }
    --------------------------------------------------------------------
    Js code:
    -------
    // -------------------------------------------------------------------
    // Image Thumbnail Viewer Script- By Dynamic Drive, available at: Dynamic Drive DHTML(dynamic html) & JavaScript code library
    // Last updated: July 7th, 2008- Fixed enlarged image not showing in IE sometimes
    // -------------------------------------------------------------------

    var thumbnailviewer={
    enableTitle: true, //Should "title" attribute of link be used as description?
    enableAnimation: true, //Enable fading animation?
    definefooter: '<div class="footerbar">CLOSE X</div>', //Define HTML for footer interface
    defineLoading: '<img src="loading.gif" /> Loading Image...', //Define HTML for "loading" div

    /////////////No need to edit beyond here/////////////////////////

    scrollbarwidth: 16,
    opacitystring: 'filterrogidXImageTransform.Microsoft.alpha(opacity=10); -moz-opacity: 0.1; opacity: 0.1',
    targetlinks:[], //Array to hold links with rel="thumbnail"

    createthumbBox:function(){
    //write out HTML for Image Thumbnail Viewer plus loading div
    document.write('<div id="thumbBox" onClick="thumbnailviewer.closeit()"><div id="thumbImage"></div>'+this.definefooter+'</div>')
    document.write('<div id="thumbLoading">'+this.defineLoading+'</div>')
    this.thumbBox=document.getElementById("thumbBox")
    this.thumbImage=document.getElementById("thumbImage") //Reference div that holds the shown image
    this.thumbLoading=document.getElementById("thumbLoading") //Reference "loading" div that will be shown while image is fetched
    this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes
    },


    centerDiv:function(divobj){ //Centers a div element on the page
    var ie=document.all && !window.opera
    var dom=document.getElementById
    var scroll_top=(ie)? this.standardbody.scrollTop : window.pageYOffset
    var scroll_left=(ie)? this.standardbody.scrollLeft : window.pageXOffset
    var docwidth=(ie)? this.standardbody.clientWidth : window.innerWidth-this.scrollbarwidth
    var docheight=(ie)? this.standardbody.clientHeight: window.innerHeight
    var docheightcomplete=(this.standardbody.offsetHeight>this.standardbody.scrollHeight)? this.standardbody.offsetHeight : this.standardbody.scrollHeight //Full scroll height of document
    var objwidth=divobj.offsetWidth //width of div element
    var objheight=divobj.offsetHeight //height of div element
    var topposition=(docheight>objheight)? scroll_top+docheight/2-objheight/2+"px" : scroll_top+10+"px" //Vertical position of div element: Either centered, or if element height larger than viewpoint height, 10px from top of viewpoint
    divobj.style.left=docwidth/2-objwidth/2+"px" //Center div element horizontally
    divobj.style.top=Math.floor(parseInt(topposition))+"px"
    divobj.style.visibility="visible"
    },

    showthumbBox:function(){ //Show ThumbBox div
    thumbnailviewer.thumbLoading.style.visibility="hidden" //Hide "loading" div
    this.centerDiv(this.thumbBox)
    if (this.enableAnimation){ //If fading animation enabled
    this.currentopacity=0.1 //Starting opacity value
    this.opacitytimer=setInterval("thumbnailviewer.opacityanimation()", 20)
    }
    },


    loadimage:function(link){ //Load image function that gets attached to each link on the page with rel="thumbnail"
    if (this.thumbBox.style.visibility=="visible") //if thumbox is visible on the page already
    this.closeit() //Hide it first (not doing so causes triggers some positioning bug in Firefox
    var imageHTML='<img src="'+link.getAttribute("href")+'" style="'+this.opacitystring+'" />' //Construct HTML for shown image
    if (this.enableTitle && link.getAttribute("title")) //Use title attr of the link as description?
    imageHTML+='<br />'+link.getAttribute("title")
    this.centerDiv(this.thumbLoading) //Center and display "loading" div while we set up the image to be shown
    this.thumbImage.innerHTML=imageHTML //Populate thumbImage div with shown image's HTML (while still hidden)
    this.featureImage=this.thumbImage.getElementsByTagName("img")[0] //Reference shown image itself
    if (this.featureImage.complete)
    thumbnailviewer.showthumbBox()
    else{
    this.featureImage.onload=function(){ //When target image has completely loaded
    thumbnailviewer.showthumbBox() //Display "thumbbox" div to the world!
    }
    }
    if (document.all && !window.createPopup) //Target IE5.0 browsers only. Address IE image cache not firing onload bug: panoramio.com/blog/onload-event/
    this.featureImage.src=link.getAttribute("href")
    this.featureImage.onerror=function(){ //If an error has occurred while loading the image to show
    thumbnailviewer.thumbLoading.style.visibility="hidden" //Hide "loading" div, game over
    }
    },

    setimgopacity:function(value){ //Sets the opacity of "thumbimage" div per the passed in value setting (0 to 1 and in between)
    var targetobject=this.featureImage
    if (typeof targetobject.style.opacity=="string") //Standard opacity syntax
    targetobject.style.opacity=value
    else if (typeof targetobject.style.MozOpacity=="string") //Old Mozilla syntax
    targetobject.style.MozOpacity=value
    else if (targetobject.filters && targetobject.filters[0]){ //IE syntax
    if (typeof targetobject.filters[0].opacity=="number") //IE6
    targetobject.filters[0].opacity=value*100
    else //IE 5.5
    targetobject.style.filter="alpha(opacity="+value*100+")"
    }
    else //Non of the above, stop opacity animation
    this.stopanimation()
    },

    opacityanimation:function(){ //Gradually increase opacity function
    this.setimgopacity(this.currentopacity)
    this.currentopacity+=0.1
    if (this.currentopacity>1)
    this.stopanimation()
    },

    stopanimation:function(){
    if (typeof this.opacitytimer!="undefined")
    clearInterval(this.opacitytimer)
    },


    closeit:function(){ //Close "thumbbox" div function
    this.stopanimation()
    this.thumbBox.style.visibility="hidden"
    this.thumbImage.innerHTML=""
    this.thumbBox.style.left="-2000px"
    this.thumbBox.style.top="-2000px"
    },

    cleanup:function(){ //Clean up routine on page unload
    this.thumbLoading=null
    if (this.featureImage) this.featureImage.onload=null
    this.featureImage=null
    this.thumbImage=null
    for (var i=0; i<this.targetlinks.length; i++)
    this.targetlinks[i].onclick=null
    this.thumbBox=null
    },

    dotask:function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
    var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
    if (target.addEventListener)
    target.addEventListener(tasktype, functionref, false)
    else if (target.attachEvent)
    target.attachEvent(tasktype, functionref)
    },

    init:function(){ //Initialize thumbnail viewer script by scanning page and attaching appropriate function to links with rel="thumbnail"
    if (!this.enableAnimation)
    this.opacitystring=""
    var pagelinks=document.getElementsByTagName("a")
    for (var i=0; i<pagelinks.length; i++){ //BEGIN FOR LOOP
    if (pagelinks[i].getAttribute("rel") && pagelinks[i].getAttribute("rel")=="thumbnail"){ //Begin if statement
    pagelinks[i].onclick=function(){
    thumbnailviewer.stopanimation() //Stop any currently running fade animation on "thumbbox" div before proceeding
    thumbnailviewer.loadimage(this) //Load image
    return false
    }
    this.targetlinks[this.targetlinks.length]=pagelinks[i] //store reference to target link
    } //end if statement
    } //END FOR LOOP
    //Reposition "thumbbox" div when page is resized
    this.dotask(window, function(){if (thumbnailviewer.thumbBox.style.visibility=="visible") thumbnailviewer.centerDiv(thumbnailviewer.thumbBox)}, "resize")


    } //END init() function

    }

    thumbnailviewer.createthumbBox() //Output HTML for the image thumbnail viewer
    thumbnailviewer.dotask(window, function(){thumbnailviewer.init()}, "load") //Initialize script on page load
    thumbnailviewer.dotask(window, function(){thumbnailviewer.cleanup()}, "unload")
    ------------------------------

    Add the below sample HTML to your page, which shows setting up the script on a regular link and a thumbnail image link:

    <p><a href="http://img184.imageshack.us/img184/1159/castleyi6.gif" rel="thumbnail" title="This is beautiful castle for sale!">Castle</a></p>

    <p><a href="http://img201.imageshack.us/img201/6923/countryxb6.gif"" rel="thumbnail"><img src="thumbnail.gif" style="width: 50px; height: 50px" /></a></p>


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •