diff --git a/form.css b/form.css
new file mode 100644
index 0000000..d75cb4e
--- /dev/null
+++ b/form.css
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+/*
+========================================================================
+   Description : CSS stylesheet
+   Author      : neox
+   Website     : https://a-lec.org
+   License    : AGPL
+========================================================================
+*/
+
+form {
+  margin-top: 20px;
+  display: table;
+  margin-left: auto;
+  margin-right: auto;
+}
+
+form *{
+  padding: 5px;
+  margin: 10px;
+  line-height: 20px;
+  text-justify: none;
+}
+
+form p { 
+  display: table-row;  
+}
+
+form label { 
+  display: table-cell; 
+  text-align: left;
+}
+
+input[type=radio] {
+  all: revert;
+  margin-top: 20px;
+}
+
+.input-symbol-euro {
+     position: relative;
+ }
+ .input-symbol-euro {
+  margin-left: -5px;
+  padding-top: 0px;
+ }
+
+ .input-symbol-euro::after {
+     position: absolute;
+     top: 0;
+     content:"€";
+     font-size: 120%;
+}
+
+form .mode {
+  display: table-cell;
+}
+
+form .renseignements {
+  display: table-cell;
+  border-bottom: 2px solid var(--a-lec_blue);
+  border-radius: 3px;
+  background-color: lightcyan;
+  padding: 5px;
+  color: black;
+  width: 100%;
+}
+
+form .renseignements:focus {
+  border-bottom: 2px solid var(--a-lec_red);
+  border-radius: 3px;
+  background-color: lightsalmon;
+}
+
+form select {
+  border-bottom: 2px solid var(--a-lec_blue);
+  border-radius: 3px;
+  background-color: lightcyan;
+  padding: 5px;
+}
+
+form .validation {
+  background-color: var(--a-lec_blue);
+  box-shadow: 3px 3px 5px grey;
+  color: white;
+  font-weight: bold;
+  border: none;
+  cursor: pointer;
+  float: right;
+  margin-bottom: -10px;
+  margin-top: 15px;
+}
+
+form .validation:focus {
+  display: table-cell;
+  background-color: var(--a-lec_red);
+  color: white;
+  font-weight: bold;
+  cursor: pointer;
+  box-shadow: none;
+}
+
+/*
+========================================================================
+   LITTLE SCREENS
+========================================================================
+*/
+@media screen and (max-width: 1100px) {
+  .mode_radio {
+    display: block;
+  }
+  
+  .mode_radio span {
+    display: block;
+  }
+}
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