Optimize the css script in the header

I am working on a site https://kaniamea.com/turtle/ and if you see the source code you will see the following. This is inline code and it comes with the Theme. It seems this is dynamicly generated CSS code from custom-styles.php. Is there a way to organize this code in a separate stylesheet in the child folder? Thanks a lot!

<style type="text/css"> .ssba {

                                    }
                                    .ssba img
                                    {
                                        width: 40px !important;
                                        padding: 6px;
                                        border:  0;
                                        box-shadow: none !important;
                                        display: inline !important;
                                        vertical-align: middle;
                                    }
                                    .ssba, .ssba a
                                    {
                                        text-decoration:none;
                                        background: none;
                                        font-family: Indie Flower;
                                        font-size:  20px;

                                    }</style><style type="text/css"> #header, #main, #topbar-inner { max-width: 1250px; } #container.one-column { } #container.two-columns-right #secondary { width:250px; float:right; } #container.two-columns-right #content { width:910px; float:left; } /*fallback*/ #container.two-columns-right #content { width:calc(100% - 280px); float:left; } #container.two-columns-left #primary { width:250px; float:left; } #container.two-columns-left #content { width:910px; float:right; } /*fallback*/ #container.two-columns-left #content { width:-moz-calc(100% - 280px); float:right; width:-webkit-calc(100% - 280px); width:calc(100% - 280px); } #container.three-columns-right .sidey { width:125px; float:left; } #container.three-columns-right #primary { margin-left:30px; margin-right:30px; } #container.three-columns-right #content { width:880px; float:left; } /*fallback*/ #container.three-columns-right #content { width:-moz-calc(100% - 310px); float:left; width:-webkit-calc(100% - 310px); width:calc(100% - 310px);} #container.three-columns-left .sidey { width:125px; float:left; } #container.three-columns-left #secondary {margin-left:30px; margin-right:30px; } #container.three-columns-left #content { width:880px; float:right;} /*fallback*/ #container.three-columns-left #content { width:-moz-calc(100% - 310px); float:right; width:-webkit-calc(100% - 310px); width:calc(100% - 310px); } #container.three-columns-sided .sidey { width:125px; float:left; } #container.three-columns-sided #secondary { float:right; } #container.three-columns-sided #content { width:880px; float:right; /*fallback*/ width:-moz-calc(100% - 310px); float:right; width:-webkit-calc(100% - 310px); float:right; width:calc(100% - 310px); float:right; margin: 0 155px 0 -1190px; } body { font-family: Ubuntu; } #content h1.entry-title a, #content h2.entry-title a, #content h1.entry-title , #content h2.entry-title { font-family: Yanone Kaffeesatz Regular; } .widget-title, .widget-title a { line-height: normal; font-family: Open Sans Light; } .entry-content h1, .entry-content h2, .entry-content h3, .entry-content h4, .entry-content h5, .entry-content h6, #comments #reply-title, .nivo-caption h2, #front-text1 h1, #front-text2 h1, .column-header-image { font-family: Open Sans Light; } #site-title span a { font-family: Yanone Kaffeesatz Regular; } #access ul li a, #access ul li a span { font-family: Droid Sans; } body { color: #444444; background-color: #FCFFC6 } a { color: #1693A5; } a:hover,.entry-meta span a:hover, .comments-link a:hover { color: #D6341D; } #header { background-color: ; } #site-title span a { color:#1693A5; } #site-description { color:#999999; } .socials a { background-color: #1693A5; } .socials-hover { background-color: #D6341D; } /* Main menu top level */ #access a, #nav-toggle span { color: #333333; } #access, #nav-toggle {background-color: #f0f37a; } #access > .menu > ul > li > a > span { border-color: #d2d55c; -moz-box-shadow: 1px 0 0 #ffff92; -webkit-box-shadow: 1px 0 0 #ffff92; box-shadow: 1px 0 0 #ffff92; } #access a:hover {background-color: #fdff87; } #access ul li.current_page_item > a, #access ul li.current-menu-item > a, #access ul li.current_page_ancestor > a, #access ul li.current-menu-ancestor > a { background-color: #fdff87; } /* Main menu Submenus */ #access > .menu > ul > li > ul:before {border-bottom-color:#2D2D2D;} #access ul ul ul:before { border-right-color:#2D2D2D;} #access ul ul li { background-color:#2D2D2D; border-top-color:#3b3b3b; border-bottom-color:#222222} #access ul ul li a{color:#BBBBBB} #access ul ul li a:hover{background:#3b3b3b} #access ul ul li.current_page_item > a, #access ul ul li.current-menu-item > a, #access ul ul li.current_page_ancestor > a, #access ul ul li.current-menu-ancestor > a { background-color:#3b3b3b; } #topbar { background-color: #000000;border-bottom-color:#282828; box-shadow:3px 0 3px #000000; } .topmenu ul li a { color: #CCCCCC; } .topmenu ul li a:hover { color: #EEEEEE; border-bottom-color: #1693A5; } #main { background-color: #FFFFFF; } #author-info, #entry-author-info, .page-title { border-color: #1693A5; background: #F7F7F7; } #entry-author-info #author-avatar, #author-info #author-avatar { border-color: #EEEEEE; } .sidey .widget-container { color: #333333; background-color: ; } .sidey .widget-title { color: #666666; background-color: #F7F7F7;border-color:#cfcfcf;} .sidey .widget-container a {color:;} .sidey .widget-container a:hover {color:;} .entry-content h1, .entry-content h2, .entry-content h3, .entry-content h4, .entry-content h5, .entry-content h6 { color: #444444; } .sticky .entry-header {border-color:#1693A5 } .entry-title, .entry-title a { color: #444444; } .entry-title a:hover { color: #000000; } #content h3.entry-format { color: #333333; background-color: #f0f37a; } #footer { color: #AAAAAA; background-color: ; } #footer2 { color: #AAAAAA; background-color: #F7F7F7; } #footer a { color: ; } #footer a:hover { color: ; } #footer2 a, .footermenu ul li:after { color: ; } #footer2 a:hover { color: ; } #footer .widget-container { color: #333333; background-color: ; } #footer .widget-title { color: #666666; background-color: #F7F7F7;border-color:#cfcfcf } a.continue-reading-link, #cryout_ajax_more_trigger { color:#333333 !important; background:#f0f37a; border-bottom-color:#1693A5; } a.continue-reading-link:after { background-color:#D6341D; } a.continue-reading-link i.icon-right-dir {color:#1693A5} a.continue-reading-link:hover i.icon-right-dir {color:#D6341D} .page-link a, .page-link > span > em {border-color:#CCCCCC} .columnmore a {background:#D6341D;color:#F7F7F7} .columnmore a:hover {background:#1693A5;} .file, .button, #respond .form-submit input#submit, input[type=submit], input[type=reset] { background-color: #FFFFFF; border-color: #CCCCCC; box-shadow: 0 -10px 10px 0 #F7F7F7 inset; } .file:hover, .button:hover, #respond .form-submit input#submit:hover { background-color: #F7F7F7; } .entry-content tr th, .entry-content thead th { color: #444444; } .entry-content fieldset, #content tr td,#content tr th, #content thead th { border-color: #CCCCCC; } #content tr.even td { background-color: #F7F7F7 !important; } hr { background-color: #CCCCCC; } input[type="text"], input[type="password"], input[type="email"], input[type="file"], textarea, select, input[type="color"],input[type="date"],input[type="datetime"],input[type="datetime-local"],input[type="month"],input[type="number"],input[type="range"], input[type="search"],input[type="tel"],input[type="time"],input[type="url"],input[type="week"] { background-color: #F7F7F7; border-color: #CCCCCC #EEEEEE #EEEEEE #CCCCCC; color: #444444; } input[type="submit"], input[type="reset"] { color: #444444; background-color: #FFFFFF; border-color: #CCCCCC; box-shadow: 0 -10px 10px 0 #F7F7F7 inset; } input[type="text"]:hover, input[type="password"]:hover, input[type="email"]:hover, textarea:hover, input[type="color"]:hover, input[type="date"]:hover, input[type="datetime"]:hover, input[type="datetime-local"]:hover, input[type="month"]:hover, input[type="number"]:hover, input[type="range"]:hover, input[type="search"]:hover, input[type="tel"]:hover, input[type="time"]:hover, input[type="url"]:hover, input[type="week"]:hover { background-color: rgba(247,247,247,0.4); } .entry-content code { border-color: #CCCCCC; border-bottom-color:#1693A5;} .entry-content pre { border-color: #CCCCCC; background-color:#F7F7F7;} .entry-content blockquote { border-color: #EEEEEE; } abbr, acronym { border-color: #444444; } .comment-meta a { color: #444444; } #respond .form-allowed-tags { color: #999999; } .reply a{ background-color: #F7F7F7; border-color: #EEEEEE; } .reply a:hover { background-color: #f0f37a;color: #1693A5; } .entry-meta .icon-metas:before {color:#CCCCCC;} .entry-meta span a, .comments-link a {color:#666666;} .entry-meta span a:hover, .comments-link a:hover {color:;} .nav-next a:hover {} .nav-previous a:hover { } .pagination { border-color:#ededed;} .pagination span, .pagination a { background:#F7F7F7; border-left-color:#dddddd; border-right-color:#ffffff; } .pagination a:hover { background: #ffffff; } #searchform input[type="text"] {color:#999999;} .caption-accented .wp-caption { background-color:rgba(22,147,165,0.8); color:#FFFFFF} .tempera-image-one .entry-content img[class*='align'],.tempera-image-one .entry-summary img[class*='align'], .tempera-image-two .entry-content img[class*='align'],.tempera-image-two .entry-summary img[class*='align'] { border-color:#1693A5;} #content p, #content ul, #content ol, #content, #frontpage blockquote { text-align:Default ; } #content p, #content ul, #content ol, .sidey, .sidey a, table, table td { font-size:15px; word-spacing:Default; letter-spacing:Default; } #content p, #content ul, #content ol, .sidey, .sidey a { line-height:1.7em; } #content h1.entry-title, #content h2.entry-title { font-size:34px ;} .widget-title, .widget-title a { font-size:18px ;} #content .entry-content h1 { font-size: 38px;} #content .entry-content h2 { font-size: 34px;} #content .entry-content h3 { font-size: 29px;} #content .entry-content h4 { font-size: 24px;} #content .entry-content h5 { font-size: 19px;} #content .entry-content h6 { font-size: 14px;} #site-title span a { font-size:38px ;} #access ul li a { font-size:14px ;} #access ul ul ul a {font-size:12px;} .nocomments, .nocomments2 {display:none;} #header-container > div { margin:40px 0 0 0px;} #content p, #content ul, #content ol, #content dd, #content pre, #content hr { margin-bottom: 1.0em; } #nav-toggle { text-align: left; } #toTop {background:#FFFFFF;margin-left:1400px;} #toTop:hover .icon-back2top:before {color:#D6341D;} #main {margin-top:20px; } #forbottom {margin-left: 30px; margin-right: 30px;} #header-widget-area { width: 33%; } #branding { height:120px; } </style>