字体真棒图标没有显示？

Question

I'm building an expanding search bar, unfortunately the search icon from Font Awesome is not showing.

Here is the code:

 ;(function(window) { 'use strict'; // EventListener | @jon_neal | //github.com/jonathantneal/EventListener !window.addEventListener && window.Element && (function() { function addToPrototype(name, method) { Window.prototype[name] = HTMLDocument.prototype[name] = Element.prototype[name] = method; } var registry = []; addToPrototype("addEventListener", function(type, listener) { var target = this; registry.unshift({ __listener: function(event) { event.currentTarget = target; event.pageX = event.clientX + document.documentElement.scrollLeft; event.pageY = event.clientY + document.documentElement.scrollTop; event.preventDefault = function() { event.returnValue = false }; event.relatedTarget = event.fromElement || null; event.stopPropagation = function() { event.cancelBubble = true }; event.relatedTarget = event.fromElement || null; event.target = event.srcElement || target; event.timeStamp = +new Date; listener.call(target, event); }, listener: listener, target: target, type: type }); this.attachEvent("on" + type, registry[0].__listener); }); addToPrototype("removeEventListener", function(type, listener) { for (var index = 0, length = registry.length; index < length; ++index) { if (registry[index].target == this && registry[index].type == type && registry[index].listener == listener) { return this.detachEvent("on" + type, registry.splice(index, 1)[0].__listener); } } }); addToPrototype("dispatchEvent", function(eventObject) { try { return this.fireEvent("on" + eventObject.type, eventObject); } catch (error) { for (var index = 0, length = registry.length; index < length; ++index) { if (registry[index].target == this && registry[index].type == eventObject.type) { registry[index].call(this, eventObject); } } } }); })(); // http://stackoverflow.com/a/11381730/989439 function mobilecheck() { var check = false; (function(a) { if (/(android|ipad|playbook|silk|bb\\d+|meego).+mobile|avantgo|bada\\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\\-(n|u)|c55\\/|capi|ccwa|cdm\\-|cell|chtm|cldc|cmd\\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\\-s|devi|dica|dmob|do(c|p)o|ds(12|\\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\\-|_)|g1 u|g560|gene|gf\\-5|g\\-mo|go(\\.w|od)|gr(ad|un)|haie|hcit|hd\\-(m|p|t)|hei\\-|hi(pt|ta)|hp( i|ip)|hs\\-c|ht(c(\\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\\-(20|go|ma)|i230|iac( |\\-|\\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\\/)|klon|kpt |kwc\\-|kyo(c|k)|le(no|xi)|lg( g|\\/(k|l|u)|50|54|\\-[aw])|libw|lynx|m1\\-w|m3ga|m50\\/|ma(te|ui|xo)|mc(01|21|ca)|m\\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\\-2|po(ck|rt|se)|prox|psio|pt\\-g|qa\\-a|qc(07|12|21|32|60|\\-[2-7]|i\\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\\-|oo|p\\-)|sdk\\/|se(c(\\-|0|1)|47|mc|nd|ri)|sgh\\-|shar|sie(\\-|m)|sk\\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\\-|v\\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\\-|tdg\\-|tel(i|m)|tim\\-|t\\-mo|to(pl|sh)|ts(70|m\\-|m3|m5)|tx\\-9|up(\\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\\-|your|zeto|zte\\-/i.test(a.substr(0, 4))) check = true })(navigator.userAgent || navigator.vendor || window.opera); return check; } // http://www.jonathantneal.com/blog/polyfills-and-prototypes/ !String.prototype.trim && (String.prototype.trim = function() { return this.replace(/^\\s+|\\s+$/g, ''); }); function UISearch(el, options) { this.el = el; this.inputEl = el.querySelector('form > input.sb-search-input'); this._initEvents(); } UISearch.prototype = { _initEvents: function() { var self = this, initSearchFn = function(ev) { ev.stopPropagation(); // trim its value self.inputEl.value = self.inputEl.value.trim(); if (!classie.has(self.el, 'sb-search-open')) { // open it ev.preventDefault(); self.open(); } else if (classie.has(self.el, 'sb-search-open') && /^\\s*$/.test(self.inputEl.value)) { // close it ev.preventDefault(); self.close(); } } this.el.addEventListener('click', initSearchFn); this.el.addEventListener('touchstart', initSearchFn); this.inputEl.addEventListener('click', function(ev) { ev.stopPropagation(); }); this.inputEl.addEventListener('touchstart', function(ev) { ev.stopPropagation(); }); }, open: function() { var self = this; classie.add(this.el, 'sb-search-open'); // focus the input if (!mobilecheck()) { this.inputEl.focus(); } // close the search input if body is clicked var bodyFn = function(ev) { self.close(); this.removeEventListener('click', bodyFn); this.removeEventListener('touchstart', bodyFn); }; document.addEventListener('click', bodyFn); document.addEventListener('touchstart', bodyFn); }, close: function() { this.inputEl.blur(); classie.remove(this.el, 'sb-search-open'); } } // add to global namespace window.UISearch = UISearch; })(window); 

 .sb-search { float: right; position: relative; margin-top: 10px; width: 0%; min-width: 40px; height: 40px; overflow: hidden; -webkit-transition: width 0.3s; -moz-transition: width 0.3s; transition: width 0.3s; -webkit-backface-visibility: hidden; } .sb-search-input { position: absolute; top: 0; right: 0; border: none; outline: none; background: #fff; width: 100%; height: 40px; margin: 0; z-index: 10; padding: 20px 65px 20px 20px; font-family: inherit; font-size: 20px; color: #2c3e50; } .sb-search-input::-webkit-input-placeholder { color: #efb480; } .sb-search-input:-moz-placeholder { color: #efb480; } .sb-search-input::-moz-placeholder { color: #efb480; } .sb-search-input:-ms-input-placeholder { color: #efb480; } .fa.fa-search, .sb-search-submit { width: 40px; height: 40px; display: block; position: absolute; right: 0; top: 0; padding: 0; margin: 0; line-height: 60px; text-align: center; cursor: pointer; } .sb-search-submit { background: #fff; /* IE needs this */ -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)"; /* IE 8 */ filter: alpha(opacity=0); /* IE 5-7 */ opacity: 0; color: transparent; border: none; outline: none; z-index: -1; } .fa.fa-search { border: none; font-size: 22px; background: #efb480; z-index: 90; speak: none; font-style: normal; font-weight: normal; font-variant: normal; text-transform: none; -webkit-font-smoothing: antialiased; } .fa.fa-search:before { content: "\\e000"; } /* Open state */ .sb-search.sb-search-open, .no-js .sb-search { width: 100%; } .sb-search.sb-search-open .fa.fa-search, .no-js .sb-search .fa.fa-search { background: #da6d0d; color: #fff; z-index: 11; } .sb-search.sb-search-open .sb-search-submit, .no-js .sb-search .sb-search-submit { z-index: 90; } 

 <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css" rel="stylesheet"/> <div class="nav-btn"> <div id="sb-search" class="sb-search"> <form> <input class="sb-search-input" placeholder="Enter your search term..." type="text" value="" name="search" id="search" /> <input class="sb-search-submit" type="submit" value="" /> <button class="sb-icon-search"><i class="fa fa-search"></i> </button> </form> </div> </div> 

I only started front-end development a few weeks ago and I'd appreciate some help! :) I included the font-awesome.min.css stylesheet. Its working in other lines.

Here is the jsfiddle: https://jsfiddle.net/0wm440gn/4/

The JS works fine in my files, I don't understand why JSFiddle doesn't do it properly. But my problem must be somewhere in the Markup/CSS.

Answer 1

Your problem is on line 88 of your CSS file, where it says:

.fa.fa-search:before {
    content: "\e000";
}

That's not the correct unicode character, and if you're using fontawesome you don't need it anyway. Delete those lines and fontawesome will take care of you.

Answer 2

Your problem is in your CSS.

You have the following rule:

.fa.fa-search:before {
    content: "\e000";
}

In the font-awesome.css file, .fa-search is defined as:

.fa-search:before {
    content: "\f002";
}

Since your selector, in your CSS, has a higher specificity , the default value of \\F002 is being replaced with \\E000 .

I removed this and the glyph appeared correctly.

---

Broken

 .fa.fa-search:before { content: "\\e000"; } 

 <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css" rel="stylesheet" /> <button class="sb-icon-search"><i class="fa fa-search"></i> 

Fixed

 <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css" rel="stylesheet"/> <button class="sb-icon-search"><i class="fa fa-search"></i> 

Answer 3

Just include the external reference to Fontawesome:

https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css

and remove the lines

.fa.fa-search:before {
    content: "\e000";
}

JSFiddle demo