Reemplaza en la línea 1688 del Style.css:
Insertar CODE, HTML o PHP:
.widget_search #s, #search #s {/* This keeps the search inputs in line This is the Sidebar Search*/
width: 165px;
display: block;
float: left;
margin-bottom: 20px;
padding-top: 6px;
padding-bottom: 4px;
padding-left: 5px;
border-radius: 10px 0 0 0;
-moz-border-radius: 10px 0 0 0;
-webkit-border-radius: 10px 0 0 0;
font-family: Arial !important;
font-size: 14px;
}
y luego en la línea 1958:
Insertar CODE, HTML o PHP:
.widget_search #searchsubmit {
display:block;
float:left;
padding:0;
margin:0;
position:relative;
background: #777;
border:none;
cursor:pointer;
color:#EEE;
text-shadow:0px -1px 0px #000;
-moz-text-shadow:0px -1px 0px #000;
-webkit-text-shadow:0px -1px 0px #000;
font-family:Arial !important;
width:27px;
height:28px;
font-size:12px;
font-family:Arial;
}
Te he quitado "mierda" de ambas clases. Pruébalo y me dices.