Text Wrapping – Where do I change Style sheet info?

I understand that in order to allow the text wrapping around images to work correctly, I need to have the following information in my style sheet
img.alignright {float:right; margin:0 0 1em 1em}
img.alignleft {float:left; margin:0 1em 1em 0}
img.aligncenter {display: block; margin-left: auto; margin-right: auto}
a img.alignright {float:right; margin:0 0 1em 1em}
a img.alignleft {float:left; margin:0 1em 1em 0}
a img.aligncenter {display: block; margin-left: auto; margin-right: auto}

But I don’t understand what exactly to delete and what to keep in. Below is my style sheet…can any one help?

Theme Name: Leafy-Green

Theme URI: http://www.sebastinsanjay.com

Version: 1.0

Description: A simple two column WP theme

Author: Sebastin Sanjay

Author URI: http://www.sebastinsanjay.com

*/

/* standard elements */

html {min-height: 100%;}

* {

margin: 0;

padding: 0;

}

a {color: #048;}

a:hover {color: #06C;}

a img {border: none;}

body {

background: #E5FF81;

color: #444;

font: normal 62.5%/1.5em Helvetica,Tahoma,sans-serif;

padding-top: 5px;

}

p,code,ul {padding-bottom: 1.2em;}

li {list-style: none;}

h1 {font: normal 2.1em Tahoma,sans-serif;}

h2 {font: normal 1.8em sans-serif;}

h3 {font: normal 1.5em Tahoma,sans-serif; color: #444;}

h1,h2,h3 {padding-top: 6px; color: #553; margin-bottom: 4px;}

code {

background: #FFF;

border: 1px solid #EEE;

border-left: 6px solid #CCC;

color: #666;

display: block;

font: normal 1em Tahoma,sans-serif;

line-height: 1.6em;

margin-bottom: 12px;

padding: 8px 10px;

white-space: pre;

}

blockquote {

background: url(‘img/quote.gif’) no-repeat;

display: block;

font-weight: bold;

padding-left: 28px;

}

/* misc */

.clearer {clear: both; font-size: 0;}

.left {float: left;}

.right {float: right;}

/* structure */

.inner-container {

border: 2px solid #C6F025;

background: #FFF;

font-size: 1.2em;

margin: 0 auto;

padding: 10px;

width: 780px;

}

.outer-container {

padding-bottom: 15px;

}

/* header & title */

.header {

background: #222 url(‘img/header.jpg’) no-repeat;

height: 160px;

margin-bottom: 5px;

text-align: center; outline:none; cursor:hand; border:0px;

}

.header h1 {margin:0px; padding:0px; text-indent:-9999999px;}

.header .title {

color: #FFF;

padding-top: 50px;

}

.header .title .sitename a {

border-bottom: 1px dashed #657382;

color: #FFF;

font: normal 3em sans-serif;

padding-bottom: 2px;

text-decoration: none;

}

.header .title a:hover {border-color: #F60;}

.header .title .slogan {

font: normal 1.1em Verdana,sans-serif;

padding-top: 6px;

}

/* path */

.path {

background: #B8E701;

color: #FFF;

font: normal 1.1em Verdana,sans-serif;

padding: 8px 12px;

}

.path li,.path ul {display: inline;}

.path a {

color: #434D1B;

text-decoration: none;

margin-right: 16px;

}

.path a:hover {

color: #FFE;

text-decoration: underline;

}

/* main */

.main {

background: url(‘img/main.gif’) repeat-y;

border-top: 4px solid #FFF;

padding: 8px 12px 0 0;

}

/* content */

.content {

float: right;

width: 538px;

}

.content .descr {

color: #664;

font-size: 0.9em;

margin-bottom: 6px;

}

.content li {

line-height: 1.4em;

list-style: url(‘img/li.gif’);

margin-left: 18px;

}

.content p {font-family: “Lucida Sans Unicode”,sans-serif; line-height: 1.75em;}

/* navigation */

.navigation {

float: left;

width: 210px;

}

.navigation h2 {

color: #889C54;

font: bold 1.1em Tahoma,sans-serif;

line-height: 30px;

margin: 0;

padding-left: 12px;

}

.navigation ul {

padding: 0;

border-top: 1px solid #EAEADA;

}

.navigation li {border-bottom: 1px solid #EAEADA;}

.navigation li a {

font-size: 1.1em;

color: #554;

display: block;

padding: 8px 0 8px 5%;

text-decoration: none;

width: 95%;

}

.navigation li a:hover {

background: #F0F0EB;

color: #654;

}

/* footer */

.footer {

background: #889C54;

color: #F7F7F2;

font: bold 1em sans-serif;

margin-top: 5px;

padding: 10px 12px;

}

.footer a {

color: #F7F7F2;

text-decoration: none;

}

.footer a:hover {color: #9ED900;}

/* posts */

.post h1 a {

border-bottom: 1px dashed #AAA;

color: #889C54;

text-decoration: none;

background: url(‘img/blog_24.png’) no-repeat;

padding: 0px 0px 0px 25px;

}

.post h1 a:hover {

border-color: #F60;

color: #889C54;

}

.post h1 {

color: #889C54;

}

.post {margin: 6px 0 2px;}

.post .info{

background: #F5F5F5 url(‘img/administrator_24.png’) no-repeat;

border: 1px solid #E3E4E4;

color: #666;

margin: 2px 0 4px;

padding: 5px 25px;

}

.post img {

border: 4px solid #DDD;

margin: 4px 0;
/*

Theme Name: Leafy-Green

Theme URI: http://www.sebastinsanjay.com

Version: 1.0

Description: A simple two column WP theme

Author: Sebastin Sanjay

Author URI: http://www.sebastinsanjay.com

*/

/* standard elements */

html {min-height: 100%;}

* {

margin: 0;

padding: 0;

}

a {color: #048;}

a:hover {color: #06C;}

a img {border: none;}

body {

background: #E5FF81;

color: #444;

font: normal 62.5%/1.5em Helvetica,Tahoma,sans-serif;

padding-top: 5px;

}

p,code,ul {padding-bottom: 1.2em;}

li {list-style: none;}

h1 {font: normal 2.1em Tahoma,sans-serif;}

h2 {font: normal 1.8em sans-serif;}

h3 {font: normal 1.5em Tahoma,sans-serif; color: #444;}

h1,h2,h3 {padding-top: 6px; color: #553; margin-bottom: 4px;}

code {

background: #FFF;

border: 1px solid #EEE;

border-left: 6px solid #CCC;

color: #666;

display: block;

font: normal 1em Tahoma,sans-serif;

line-height: 1.6em;

margin-bottom: 12px;

padding: 8px 10px;

white-space: pre;

}

blockquote {

background: url(‘img/quote.gif’) no-repeat;

display: block;

font-weight: bold;

padding-left: 28px;

}

/* misc */

.clearer {clear: both; font-size: 0;}

.left {float: left;}

.right {float: right;}

/* structure */

.inner-container {

border: 2px solid #C6F025;

background: #FFF;

font-size: 1.2em;

margin: 0 auto;

padding: 10px;

width: 780px;

}

.outer-container {

padding-bottom: 15px;

}

/* header & title */

.header {

background: #222 url(‘img/header.jpg’) no-repeat;

height: 160px;

margin-bottom: 5px;

text-align: center; outline:none; cursor:hand; border:0px;

}

.header h1 {margin:0px; padding:0px; text-indent:-9999999px;}

.header .title {

color: #FFF;

padding-top: 50px;

}

.header .title .sitename a {

border-bottom: 1px dashed #657382;

color: #FFF;

font: normal 3em sans-serif;

padding-bottom: 2px;

text-decoration: none;

}

.header .title a:hover {border-color: #F60;}

.header .title .slogan {

font: normal 1.1em Verdana,sans-serif;

padding-top: 6px;

}

/* path */

.path {

background: #B8E701;

color: #FFF;

font: normal 1.1em Verdana,sans-serif;

padding: 8px 12px;

}

.path li,.path ul {display: inline;}

.path a {

color: #434D1B;

text-decoration: none;

margin-right: 16px;

}

.path a:hover {

color: #FFE;

text-decoration: underline;

}

/* main */

.main {

background: url(‘img/main.gif’) repeat-y;

border-top: 4px solid #FFF;

padding: 8px 12px 0 0;

}

/* content */

.content {

float: right;

width: 538px;

}

.content .descr {

color: #664;

font-size: 0.9em;

margin-bottom: 6px;

}

.content li {

line-height: 1.4em;

list-style: url(‘img/li.gif’);

margin-left: 18px;

}

.content p {font-family: “Lucida Sans Unicode”,sans-serif; line-height: 1.75em;}

/* navigation */

.navigation {

float: left;

width: 210px;

}

.navigation h2 {

color: #889C54;

font: bold 1.1em Tahoma,sans-serif;

line-height: 30px;

margin: 0;

padding-left: 12px;

}

.navigation ul {

padding: 0;

border-top: 1px solid #EAEADA;

}

.navigation li {border-bottom: 1px solid #EAEADA;}

.navigation li a {

font-size: 1.1em;

color: #554;

display: block;

padding: 8px 0 8px 5%;

text-decoration: none;

width: 95%;

}

.navigation li a:hover {

background: #F0F0EB;

color: #654;

}

/* footer */

.footer {

background: #889C54;

color: #F7F7F2;

font: bold 1em sans-serif;

margin-top: 5px;

padding: 10px 12px;

}

.footer a {

color: #F7F7F2;

text-decoration: none;

}

.footer a:hover {color: #9ED900;}

/* posts */

.post h1 a {

border-bottom: 1px dashed #AAA;

color: #889C54;

text-decoration: none;

background: url(‘img/blog_24.png’) no-repeat;

padding: 0px 0px 0px 25px;

}

.post h1 a:hover {

border-color: #F60;

color: #889C54;

}

.post h1 {

color: #889C54;

}

.post {margin: 6px 0 2px;}

.post .info{

background: #F5F5F5 url(‘img/administrator_24.png’) no-repeat;

border: 1px solid #E3E4E4;

color: #666;

margin: 2px 0 4px;

padding: 5px 25px;

}

.post img {

border: 4px solid #DDD;

margin: 4px 0;

}

.post a img {border: 4px solid #DDD;}

.post a:hover img {border-color: #CCC;}

.info a {color: #9ED900; text-decoration: none;}

.info a:hover {color: #9ED900; text-decoration: underline;}

/* comments */

.content ol li {

background: none;

}

.commentlist {margin: 0; padding: 0;}

.commentlist li {

margin-bottom: 1.2em;

list-style: decimal;

}

#commentform {

margin: 1em 0;

background: #FAFAFA;

width: 360px;

}

.commentmetadata {padding: 2px 0 4px;}

.commentmetadata a {

color: #444;

text-decoration: none;

}

.commentmetadata a:hover {text-decoration: underline;}

textarea.styled {width: 280px;}

.styled {

font-size: 1.1em;

background: #F8F7F6;

border: 1px solid #D6D3D3;

}

.styled:hover {

background: #FFF;

border: 1px solid #D6D3D3;

}

.styled:focus {

background: #FFF;

border: 1px solid #939793;

}

#commentform input {margin-bottom: 3px;}

/* calendar */

#wp-calendar {color:#A0A0A0;}

.navigation table caption {border-bottom-color:#000;}

.navigation table thead tr {

border-bottom-color:#000;

color:#A53512;

}

.navigation table th {border-bottom-color:#000;}

.navigation table td#today {

border-color:#000;

color:#A53512;

}

.navigation table td a {

border-bottom-color:#000;

background-color:#EDF3DE;

}

.navigation table tfoot {border-top-color:#000;}

.navigation table tfoot a {background:none;}

/* calendar

————————————————–*/

#wp-calendar {

display:inline-table;

border-collapse:collapse;

width:185px;

margin:0px 10px 0 10px;

text-align:center;

}

.navigation table caption {

margin: -5px 10px 0 10px;

padding-bottom: 5px;

border-bottom: 1px solid;

letter-spacing: 0.1em;

}

.navigation table thead tr {border-bottom:1px solid;}

.navigation table th {border-bottom:1px solid;}

.navigation table td {

width: 225px; /* maximaize width; honestly, I don’t know much about tables… */

padding: 1px;

font-size: 0.9em;

}

.navigation table td#today {

padding: 0;

border: 1px solid;

font-size: 1em;

font-weight: bold;

}

.navigation table td a {

display: block;

border-bottom: 1px solid;

font-weight: bold;

font-size: 1.15em;

}

.navigation table tfoot {border-top:1px solid;}

.navigation table tfoot a {

border: none;

font-weight: bold;

}

.navigation table tfoot #prev a {text-align:left;}

.navigation table tfoot #next a {text-align:center;}

.post img.alignright {float:right; margin:0 0 1em 1em}
.post img.alignleft {float:left; margin:0 1em 1em 0}
.post img.aligncenter {display: block; margin-left: auto; margin-right: auto}
.post a img.alignright {float:right; margin:0 0 1em 1em}{border: 4px solid #DDD;}
.post a img.alignleft {float:left; margin:0 1em 1em 0}{border: 4px solid #DDD;}
.post a img.aligncenter {display: block; margin-left: auto; margin-right: auto}{border: 4px solid #DDD;}

.post a:hover img {border-color: #CCC;}

.info a {color: #9ED900; text-decoration: none;}

.info a:hover {color: #9ED900; text-decoration: underline;}

/* comments */

.content ol li {

background: none;

}

.commentlist {margin: 0; padding: 0;}

.commentlist li {

margin-bottom: 1.2em;

list-style: decimal;

}

#commentform {

margin: 1em 0;

background: #FAFAFA;

width: 360px;

}

.commentmetadata {padding: 2px 0 4px;}

.commentmetadata a {

color: #444;

text-decoration: none;

}

.commentmetadata a:hover {text-decoration: underline;}

textarea.styled {width: 280px;}

.styled {

font-size: 1.1em;

background: #F8F7F6;

border: 1px solid #D6D3D3;

}

.styled:hover {

background: #FFF;

border: 1px solid #D6D3D3;

}

.styled:focus {

background: #FFF;

border: 1px solid #939793;

}

#commentform input {margin-bottom: 3px;}

/* calendar */

#wp-calendar {color:#A0A0A0;}

.navigation table caption {border-bottom-color:#000;}

.navigation table thead tr {

border-bottom-color:#000;

color:#A53512;

}

.navigation table th {border-bottom-color:#000;}

.navigation table td#today {

border-color:#000;

color:#A53512;

}

.navigation table td a {

border-bottom-color:#000;

background-color:#EDF3DE;

}

.navigation table tfoot {border-top-color:#000;}

.navigation table tfoot a {background:none;}

/* calendar

————————————————–*/

#wp-calendar {

display:inline-table;

border-collapse:collapse;

width:185px;

margin:0px 10px 0 10px;

text-align:center;

}

.navigation table caption {

margin: -5px 10px 0 10px;

padding-bottom: 5px;

border-bottom: 1px solid;

letter-spacing: 0.1em;

}

.navigation table thead tr {border-bottom:1px solid;}

.navigation table th {border-bottom:1px solid;}

.navigation table td {

width: 225px; /* maximaize width; honestly, I don’t know much about tables… */

padding: 1px;

font-size: 0.9em;

}

.navigation table td#today {

padding: 0;

border: 1px solid;

font-size: 1em;

font-weight: bold;

}

.navigation table td a {

display: block;

border-bottom: 1px solid;

font-weight: bold;

font-size: 1.15em;

}

.navigation table tfoot {border-top:1px solid;}

.navigation table tfoot a {

border: none;

font-weight: bold;

}

.navigation table tfoot #prev a {text-align:left;}

.navigation table tfoot #next a {text-align:center;}

#searchform {padding: 10px;}