.button_line {
    display: inline-block;
    text-align: center;
    vertical-align: middle;
    padding: 12px 24px;
    border: 0px solid #2e8b2b;
    border-radius: 8px;
    background: #3aae36;
    background: -webkit-gradient(linear, left top, left bottom, from(#3aae36), to(#3aae36));
    background: -moz-linear-gradient(top, #3aae36, #3aae36);
    background: linear-gradient(to bottom, #3aae36, #3aae36);
    font: normal normal normal 20px arial;
    color: #ffffff;
    text-decoration: none;
}
.button_line:before{
    content:  "\0000a0";
    display: inline-block;
    height: 24px;
    width: 24px;
    line-height: 24px;
    margin: 0 4px -6px -4px;
    position: relative;
    top: 0px;
    left: 0px;
    background: url("data:image/png;base64,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") no-repeat left center transparent;
    background-size: 100% 100%;
}
.add-line-button {
    background-color: #32c832;
    color: #ffffff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
}

.add-line-button:hover {
    background-color: #28a828;
}